For some number y and some divisor x compute the quotient (quotient)[1] and remainder (remainder) as:

const quotient = Math.floor(y/x);
const remainder = y % x;

Example:

const quotient = Math.floor(13/3); // => 4 => the times 3 fits into 13  
const remainder = 13 % 3;          // => 1

[1] The integer number resulting from the division of one number by another

Answer from Mark Elliot on Stack Overflow
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AlgoCademy
algocademy.com › link
Floor Division in JavaScript | AlgoCademy
Instead, you achieve floor division with Math.floor(a / b) — but the distinction between floor and truncate matters more than beginners expect, especially with negative numbers.
People also ask

How do you perform integer division in JavaScript?
JavaScript does not have a dedicated integer division operator, but you can divide numbers and remove decimals using methods like Math.floor(), Math.trunc(), or bitwise operators.
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golinuxcloud.com
golinuxcloud.com › home › javascript › javascript integer division (divide without remainder explained)
JavaScript Integer Division (Divide Without Remainder Explained) ...
What is the fastest way to perform integer division in JavaScript?
Bitwise operators such as the double NOT operator (~~) can convert a floating point division result to an integer quickly, but they only work correctly within 32-bit integer limits.
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golinuxcloud.com
golinuxcloud.com › home › javascript › javascript integer division (divide without remainder explained)
JavaScript Integer Division (Divide Without Remainder Explained) ...
Can JavaScript perform integer division with BigInt?
Yes. When both operands are BigInt values, JavaScript division automatically performs integer division and discards any fractional result.
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golinuxcloud.com
golinuxcloud.com › home › javascript › javascript integer division (divide without remainder explained)
JavaScript Integer Division (Divide Without Remainder Explained) ...
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W3Schools
w3schools.com › jsref › jsref_floor.asp
JavaScript Math floor() Method
Addition Subtraction Multiplication Division Exponentiation Remainder Increment Decrement Concatenation Unary Plus Unary Negation JS Comparison
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MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Math › floor
Math.floor() - JavaScript | MDN
console.log(Math.floor(5.95)); // Expected output: 5 console.log(Math.floor(5.05)); // Expected output: 5 console.log(Math.floor(5)); // Expected output: 5 console.log(Math.floor(-5.05)); // Expected output: -6 ... The largest integer smaller than or equal to x.
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Latenode
community.latenode.com › other questions › javascript
How to execute integer division and retrieve the remainder in JavaScript? - JavaScript - Latenode Official Community
December 3, 2024 - In JavaScript, what is the method to find the following: The exact count of how many times one integer fits completely into another? The leftover value after that division?
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MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Operators › Division
Division (/) - JavaScript | MDN
This is because number division by zero returns Infinity or -Infinity, but BigInt has no concept of infinity. js · 1 / 2; // 0.5 Math.floor(3 / 2); // 1 1.0 / 2.0; // 0.5 2 / 0; // Infinity 2.0 / 0.0; // Infinity, because 0.0 === 0 2.0 / -0.0; // -Infinity ·
Find elsewhere
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Delft Stack
delftstack.com › home › howto › javascript › integer division javascript
Integer Division in JavaScript | Delft Stack
October 12, 2023 - The Math.floor() function rounds a number downwards to the nearest integer. By applying this function to the result of standard division, we can obtain the integer quotient.
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Sololearn
sololearn.com › en › Discuss › 2108423 › how-to-use-floor-division-in-js
How to use floor division in js? | Sololearn: Learn to code for FREE!
javascriptdivisionfloor · 23rd Dec 2019, 4:50 AM · Yash · 3 Answers · Answer · + 4 · https://www.sololearn.com/post/200987/?ref=app · 23rd Dec 2019, 10:00 AM · Gordon · + 2 · do you want to apply division? 23rd Dec 2019, 5:09 AM · Yaroslav Vernigora · + 2 · Yup floor division. Means only quotient · 23rd Dec 2019, 5:20 AM · Yash · Answer · Learn more efficiently, for free: Introduction to Python ·
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GoLinuxCloud
golinuxcloud.com › home › javascript › javascript integer division (divide without remainder explained)
JavaScript Integer Division (Divide Without Remainder Explained) | GoLinuxCloud
October 17, 2022 - Since JavaScript always returns a floating-point value when using the / operator, we must use additional methods to remove the decimal portion. The Math.floor() method rounds a number down to the nearest integer.
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GeeksforGeeks
geeksforgeeks.org › division-in-javascript
Division in JavaScript | GeeksforGeeks
April 28, 2025 - In this technique the number which is to be divided is called Dividend, the number which divides is called Divisor, the number which we get as a result of division is called a Quotient, a ... Assignment operators are used to assign values to variables in JavaScript.JavaScript// Lets take some variables x = 10 y = 20 x = y // Here, x is equal to 20 console.log(x); console.log(y); Output20 20 More Assignment OperatorsThere are so many assignment operators as shown in the table with the des
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DEV Community
dev.to › lavary › integer-division-in-javascript-explained-fai
Integer division in JavaScript explained - DEV Community
March 4, 2023 - For instance, the output of the ... Let's see how we can get it. The Math.floor() function always rounds down and returns the largest integer less than (or equal) to the given number....
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Alvatech
alvatech.io › blog › javascript-integer-division
Gotchas in Integer Division in JavaScript - AlvaTech
One way to perform integer division in JavaScript is to use the Math.floor method. This method rounds down a given number to the nearest integer, so if we pass a floating-point number to it, it will return the integer that is less than or equal ...
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Reddit
reddit.com › r/shittyprogramming › you can do integer division in javascript
r/shittyprogramming on Reddit: You can do integer division in JavaScript
March 17, 2015 -

I learned that you can do integer division in Python with //, for example 5.0 // 2 == 2.0 whereas 5.0 / 2 == 2.5. I wanted to know whether or not it was possible to do the same in JavaScript, and I found out that it was!

> 5 // 0.9
< 5
> 1 // 0.6
< 1
> 172 // 1
< 172

Try it yourself!

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Stack Abuse
stackabuse.com › bytes › integer-division-and-finding-the-remainder-in-javascript
Integer Division and Finding the Remainder in JavaScript
September 6, 2023 - JavaScript does not have a built-in operator for integer division. However, we can achieve this by first performing a regular division using the / operator, and then using the Math.floor() function to round down to the nearest integer.
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SheCodes
shecodes.io › athena › 57992-what-does-math-floor-do-in-javascript
[JavaScript] - What does Math.floor() do in JavaScript? - | SheCodes
Learn about the Math.floor() method in JavaScript and how it rounds down a given number to its nearest integer.
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Itsourcecode
itsourcecode.com › home › improved your javascript floor division methods
Improved Your JavaScript Floor Division Methods
August 9, 2023 - JavaScript floor division requires dividing two numbers and rounding the result down to the nearest integer.
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HCL Software
help.hcl-software.com › dom_designer › 9.0.1 › reference › r_wpdr_standard_math_floor_r.html
floor (JavaScript)
Rounds a number to an integer by truncating the fraction. Math (JavaScript) floor(value:double) : double · Special cases are as follows: Rounding NaN results in NaN. Rounding +Infinity results in positive infinity. Rounding -Infinity results in negative infinity.
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Nick the Coder
nickthecoder.wordpress.com › 2013 › 02 › 11 › integer-division-in-javascript
Integer division in Javascript | Nick the Coder
February 11, 2013 - All numbers in javascript are doubles. This means no integer division by default. ... Integer division can easily be achieved by flooring the quotient of the two numbers, using Math.floor
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Codecademy
codecademy.com › forum_questions › 5384587e52f863dcb8001c82
what is floor division // | Codecademy
Floor division means the “//“ will always take the floor or the lower number. ... In this SQL course, you'll learn how to manage large datasets and analyze real data using the standard data management language.