Let's divide 790516 by 21
We want to divide 790516 by 21.

Going ahead to step 1:
If we divide 7 by 21, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 21

Advancing to step 2:
The number 21 fits into 79 3 times, leaving a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 63 from 79 leaves us with 16.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 21

Advancing to step 3:
If we divide 160 by 21, we get 7 and a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
Deduct 147 from 160 and we're left with 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 21

Moving on to step 4:
21 goes into 135 6 times with a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 376.0
If we take 126 away from 135, we end up with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 21

Step 5:
The number 21 fits into 91 4 times, leaving a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 3764.0
If we subtract 84 from 91, we get 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 21

Advancing to step 6:
21 goes into 76 3 times with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 37643.0
If we subtract 63 from 76, we 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.

Moving on to step 7:
If we divide 130 by 21, we get 6 and a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 37643.6
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
40 divided by 21 is 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 37643.61
The remainder is 19 after subtracting 21 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
190 divided by 21 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 37643.619
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.

Advancing to step 10:
10 divided by 21 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 37643.619
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 11:
21 goes into 100 4 times with a remainder of 16.
The next digit of our result is 4. 
Result so far: 37643.61904
Subtracting 84 from 100 leaves us 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.

Advancing 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: 37643.619047
Subtracting 147 from 160 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.

Advancing to step 13:
130 divided by 21 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 37643.6190476
Subtracting 126 from 130 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 14:
When dividing 40 by 21, we get 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 37643.61904761
The remainder is 19 after subtracting 21 from 40.
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 37643.61904761 with a remainder of 1.9e-08.