Long division calculator

Divide whole numbers with quotient, remainder and a digit-by-digit long-division trace.

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Integer dividend

Integer divisor

Answer

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Divide whole numbers with quotient, remainder and a digit-by-digit long-division trace.

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Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

Division truncates toward zero. Remainder has the dividend’s sign and satisfies dividend = divisor × quotient + remainder. Trace uses absolute values; final signs are shown in the identity.

Whole-number and finite-decimal arithmetic is exact within the stated input limits. Any requested rounding uses the selected setting. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Use +, −, ×, ÷, parentheses and %. A percentage is divided by 100. This does not change the main tool.

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Updated 2026-09-20

Using Long division calculator

Divide whole numbers with quotient, remainder and a digit-by-digit long-division trace.

Division truncates toward zero. Remainder has the dividend’s sign and satisfies dividend = divisor × quotient + remainder. Trace uses absolute values; final signs are shown in the identity.

Next: Fraction calculator

A worked example

Example inputs: integer dividend = 123, integer divisor = 5. Integer quotient = 24.

Before you use the result

Division truncates toward zero. Remainder has the dividend’s sign and satisfies dividend = divisor × quotient + remainder. Trace uses absolute values; final signs are shown in the identity. Whole-number and finite-decimal arithmetic is exact within the stated input limits. Any requested rounding uses the selected setting.

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