วิธีการคำนวณ Long Division

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Long division is a step-by-step method for dividing large numbers by hand. It breaks the division into a sequence of smaller operations — divide, multiply, subtract, bring down — repeated until the calculation is complete. The result is a quotient and (optionally) a remainder.

คำแนะนำทีละขั้นตอน

1. 1Write the dividend inside the bracket and the divisor outside
2. 2Divide the first digit(s) of the dividend by the divisor to get the first quotient digit
3. 3Multiply that quotient digit by the divisor and write the product below
4. 4Subtract to find the remainder, then bring down the next digit
5. 5Repeat steps 2–4 until all digits are processed

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