Arithmetic 8 min read

Long Division Step-by-Step Guide with Examples

Master long division with polynomials and whole numbers. Learn Divide, Multiply, Subtract, Bring Down (DMSB) steps.

BM Sanjay Samanta & Academic Review Board

Published August 11, 2026

Fact-Checked

The 4 Steps of Long Division (DMSB)

Divide: How many times does the divisor fit into the current working digit?
Multiply: Multiply the quotient digit by the divisor.
Subtract: Subtract the product from the current working number.
Bring Down: Bring down the next digit and repeat until complete.

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Reviewed by Applied Math Specialists • Editorial Policy

Updated: August 11, 2026

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