We're dividing 790131 by 21 
We want to divide 790131 by 21.

Going ahead to step 1:
If we divide 7 by 21, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 21

Let's proceed to step 2:
21 goes into 79 3 times with a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 63 away from 79, we end up with 16.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 21

Moving on to step 3:
If we divide 160 by 21, we get 7 and a remainder of 13.
The next digit of our result is 7. 
Result so far: 37.0
Subtract 147 from 160 to get 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 21

Let's proceed to step 4:
21 goes into 131 6 times with a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 376.0
If we subtract 126 from 131, we get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 21

On to step 5:
53 divided by 21 is 2 with a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 3762.0
The remainder is 11 after subtracting 42 from 53.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 21

Let's proceed to step 6:
If we divide 111 by 21, we get 5 and a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 37625.0
If we subtract 105 from 111, we 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.

Step 7:
If we divide 60 by 21, we get 2 and a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 37625.2
Subtracting 42 from 60 leaves us 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.

On to step 8:
21 can be fit into 180 8 times, resulting in a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 37625.28
If we take 168 away from 180, we end up 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.

Advancing to step 9:
21 goes into 120 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 37625.285
Subtract 105 from 120 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.

On to step 10:
150 divided by 21 is 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 37625.2857
Subtract 147 from 150 to get 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 11:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 37625.28571
Subtracting 21 from 30 leaves us 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 12:
If we divide 90 by 21, we get 4 and a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 37625.285714
Deduct 84 from 90 and we're left 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.

Advancing to step 13:
When dividing 60 by 21, we get 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 37625.2857142
Deduct 42 from 60 and we're left 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.

Step 14:
21 goes into 180 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 37625.28571428
Deduct 168 from 180 and we're left 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.

Our division results in 37625.28571428 with a remaining 1.2e-08.