Floor Division Calculator

Floor Division Calculator

Divide two numbers and round down toward negative infinity, with quotient and remainder shown live.

Last updated: June 2026 | By Patchworkr Team

Floor Division
Use floor division to round the quotient down and then derive the remainder from the identity dividend = quotient x divisor + remainder.
Result
Quotient
3
Remainder
1
Standard
3.333333
10 = (3 x 3) + 1

What floor division means

Floor division returns the greatest integer less than or equal to the exact quotient. That makes it different from truncation when negative numbers are involved.

Remainder rule

The remainder is whatever is left after subtracting quotient x divisor from the dividend. With floor division, the identity always stays true.

Formula and example

quotient = floor(dividend / divisor)

Example: floor(17 / 5) = 3 with remainder 2.

Worked Example

Evaluate -7 floor-divided by 3.

1. Compute the exact quotient: -7 / 3 = -2.333333...

2. Floor rounds down to -3.

3. Use the identity: -7 = (-3 x 3) + 2.

Final answer: -3 remainder 2

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