We look at the division of 65952672 by 21 
We want to figure out the number of times 65952672 can be divided by 21.

Step 1:
21 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 21

Let's proceed to step 2:
When dividing 65 by 21, we get 3 with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 63 from 65, we get 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 21

On to step 3:
21 goes into 29 1 times with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
If we subtract 21 from 29, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 21

Going ahead to step 4:
When dividing 85 by 21, we get 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 314.0
Deduct 84 from 85 and we're left with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 21

Going ahead to step 5:
If we divide 12 by 21, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 3140.0
If we subtract 0 from 12, we get 12.
Grab the next digit (6) from the dividend, add it to 12, then carry on: 126 / 21

Let's proceed to step 6:
21 goes into 126 6 times with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 31406.0
Deduct 126 from 126 and we're left with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 21

Advancing to step 7:
7 divided by 21 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 314060.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 21

Moving on to step 8:
21 goes into 72 3 times with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3140603.0
If we take 63 away from 72, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 9:
21 can be fit into 90 4 times, resulting in a remainder of 6.
The next digit of our result is 4. 
Result so far: 3140603.4
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
21 goes into 60 2 times with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 3140603.42
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 11:
If we divide 180 by 21, we get 8 and a remainder of 12.
The next digit of our result is 8. 
Result so far: 3140603.428
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
The number 21 fits into 120 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 3140603.4285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 13:
If we divide 150 by 21, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 3140603.42857
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 14:
When dividing 30 by 21, we get 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 3140603.428571
Subtract 21 from 30 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 15:
When dividing 90 by 21, we get 4 with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 3140603.4285714
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 16:
21 goes into 60 2 times with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 3140603.42857142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 3140603.42857142 with a remainder of 1.8e-08.