Let's divide 79625967 by 21
We're looking to find how many times 21 goes into 79625967.

Moving on to step 1:
When dividing 7 by 21, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 21

Let's proceed to step 2:
21 goes into 79 3 times with a remainder of 16.
The next digit of our result is 3. 
Result so far: 3.0
If we take 63 away from 79, we end up with 16.
Take the next digit (6) from the dividend and append it to 16, then repeat: 166 / 21

On to step 3:
When dividing 166 by 21, we get 7 with a remainder of 19.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
Subtracting 147 from 166 leaves us with 19.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 21

Going ahead to step 4:
When dividing 192 by 21, we get 9 with a remainder of 3.
The next digit of our result is 9. 
Result so far: 379.0
If we take 189 away from 192, we end up with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 21

Let's proceed to step 5:
21 can be fit into 35 1 times, resulting in a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 3791.0
If we subtract 21 from 35, we get 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 21

Advancing to step 6:
21 goes into 149 7 times with a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 37917.0
The remainder is 2 after subtracting 147 from 149.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 21

Step 7:
If we divide 26 by 21, we get 1 and a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 379171.0
If we subtract 21 from 26, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 21

Let's proceed to step 8:
The number 21 fits into 57 2 times, leaving a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 3791712.0
Subtract 42 from 57 to get 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 9:
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: 3791712.7
Deduct 147 from 150 and we're left with 3.
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 10:
21 goes into 30 1 times with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 3791712.71
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.

On to step 11:
21 goes into 90 4 times with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 3791712.714
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 3791712.7142
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.

Step 13:
When dividing 180 by 21, we get 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 3791712.71428
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 14:
The number 21 fits into 120 5 times, leaving a remainder of 15.
The next digit of our result is 5. 
Result so far: 3791712.714285
If we subtract 105 from 120, we get 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 15:
21 goes into 150 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 3791712.7142857
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.

Moving on to step 16:
21 can be fit into 30 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 3791712.71428571
If we subtract 21 from 30, we 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.

After the division, we end up with 3791712.71428571 and a remainder of 9e-09.