Long Division: 105 ÷ 21

Long Division Calculator
Dividend (number to be divided)
Divisor (number to divide by)

How to perform long division of 105 by 21?

Answer

105 ÷ 21 = 5

✓ exact division

105 ÷ 21 = 5

Visual Long Division

 
 
0
0
5
2
1
1
0
5
 
 
−
1
0
5
 
 
 
 
0

This shows the traditional long division layout used in schools, with each step clearly marked.

Step-by-Step Explanation

Here's how to solve 105 ÷ 21 using long division method step by step:

Step 1:Take the number 105 and divide by 21. We get 5 (write it in the quotient). Multiply 5 × 21 = 105 (write it below the dividend). Subtract 105 - 105 = 0.
Final Step:The division is complete with no remainder. 105 divides exactly by 21 to give 5.

Division Steps

StepDividend PartQuotient DigitMultiplySubtractRemainder
110555 × 21 = 105105 - 105 = 00

Perfect division: 105 divides evenly by 21 with no remainder.

About Long Division

Long division is a method for dividing large numbers that breaks down the division process into smaller, manageable steps. It's taught in elementary school as a systematic way to perform division by hand.

The process involves:

  • Dividing the leftmost digits of the dividend by the divisor
  • Writing the quotient digit above the dividend
  • Multiplying the quotient digit by the divisor
  • Subtracting this product from the current dividend portion
  • Bringing down the next digit and repeating the process

This method ensures accuracy and helps students understand the relationship between multiplication and division.

Related Calculations

See Also

Long Division Calculator

Long division calculator with step-by-step explanation. Enter dividend and divisor to get a detailed solution with visualization. For example, it can help you find out how to perform long division of 105 by 21? (The answer is: The division of 105 by 21 is exact. Result: 105 ÷ 21 = 5.). Enter dividend (e.g. '29224') and divisor (e.g. '4') and hit the 'Calculate' button.

Long Division Table

DivisionQuotientRemainder
98 ÷ 21414
99 ÷ 21415
100 ÷ 21416
101 ÷ 21417
102 ÷ 21418
103 ÷ 21419
104 ÷ 21420
105 ÷ 2150
106 ÷ 2151
107 ÷ 2152
108 ÷ 2153
109 ÷ 2154
110 ÷ 2155
111 ÷ 2156
112 ÷ 2157

FAQ

How to perform long division of 105 by 21?

105 ÷ 21 = 5

Is 105 divisible by 21?

Yes, 105 is divisible by 21. The result is 5.

How to check the result of 105 ÷ 21?

Multiply the quotient 5 by the divisor 21. The result should equal 105.