Modulo Calculator
Calculate a quotient truncated toward zero and its division remainder.
How to use
- Enter the dividend.
- Enter a non-zero divisor and calculate.
Capabilities and scope
This runner follows remainder semantics close to JavaScript rather than a modulo definition that is always non-negative.
How it works
It uses q=Math.trunc(dividend/divisor) and r=dividend−q×divisor.
Example
17 divided by 5 gives quotient 3 and remainder 2, verifying 17=5×3+2.
Useful for
- Check remainder behavior used by programming languages
- View integer quotient and remainder together
Before you use it
- A zero divisor is rejected, and negative inputs can differ from always-nonnegative modulo conventions.
Frequently asked questions
Why can a negative dividend produce a negative remainder?
Because the quotient is truncated toward zero before the remainder is formed.