We divide 752128 by 21
Our goal is to divide 752128 by 21.

Step 1:
21 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 21

Moving on to step 2:
21 goes into 75 3 times with a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 12 after subtracting 63 from 75.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 21

Step 3:
When dividing 122 by 21, we get 5 with a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 35.0
The remainder is 17 after subtracting 105 from 122.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 21

Moving on to step 4:
21 goes into 171 8 times with a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 358.0
Deduct 168 from 171 and we're left with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 21

On to step 5:
If we divide 32 by 21, we get 1 and a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 3581.0
Deduct 21 from 32 and we're left with 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 21

Step 6:
The number 21 fits into 118 5 times, leaving a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 35815.0
Subtracting 105 from 118 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
When dividing 130 by 21, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 35815.6
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 8:
When dividing 40 by 21, we get 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 35815.61
If we take 21 away from 40, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
If we divide 190 by 21, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 35815.619
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 10:
21 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 35815.619
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
When dividing 100 by 21, we get 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 35815.61904
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 35815.619047
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 13:
The number 21 fits into 130 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 35815.6190476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 35815.61904761
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final result is 35815.61904761 with a remainder of 1.9e-08.