How many times does 21 divide into 255?

How many times does the digit 21 appear in the number 255?

255 divided by 21 equals 12 with a remainder of 3

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Step By Step Calculation

Step 1: Understand Division Terms

  • Dividend: The number being divided (255).
  • Divisor: The number dividing the dividend (21).
  • Quotient: The whole-number result of division.
  • Remainder: The amount left over after division.

Step 2: Set Up the Division

Calculate 255 ÷ 21 to determine how many times 21 fits fully into 255.

Step 3: Perform the Division

255 ÷ 21=12.142857142857

  • Whole-number quotient: 12 (the number of times 21 fits completely into 255).

Step 4: Verify the Quotient

Multiply the quotient by the divisor to check:

12 x 21 = 252

Step 5: Calculate the Remainder

Subtract this product from the original dividend:

255 - 252 = 3

  • Remainder: 3 (the amount left over).

Final Answer

255 ÷ 21 = 12 R 3

  • 21 fits into 255 exactly 12 times with a remainder of 3.