We look at the division of 790869 by 51 
We're looking to find how many times 51 goes into 790869.

On to step 1:
When dividing 7 by 51, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 51

On to step 2:
The number 51 fits into 79 1 times, leaving a remainder of 28.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 51 away from 79, we end up with 28.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 51

Let's proceed to step 3:
280 divided by 51 is 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 255 from 280 and we're left with 25.
Grab the next digit (8) from the dividend, add it to 25, then carry on: 258 / 51

Step 4:
51 goes into 258 5 times with a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 155.0
Subtracting 255 from 258 leaves us with 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 51

Going ahead to step 5:
36 divided by 51 is 0 with a remainder of 36.
The next digit of our result is 0. 
Result so far: 1550.0
Subtracting 0 from 36 leaves us with 36.
Bring next digit (9) of the dividend behind the 36 and repeat the process: 369 / 51

Going ahead to step 6:
The number 51 fits into 369 7 times, leaving a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 15507.0
If we subtract 357 from 369, we get 12.
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 7:
51 can be fit into 120 2 times, resulting in a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 15507.2
If we take 102 away from 120, 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.

Let's proceed to step 8:
The number 51 fits into 180 3 times, leaving a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 15507.23
If we subtract 153 from 180, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 9:
If we divide 270 by 51, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 15507.235
The remainder is 15 after subtracting 255 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 10:
150 divided by 51 is 2 with a remainder of 48.
The next digit of our result is 2. 
Result so far: 15507.2352
Subtract 102 from 150 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 11:
If we divide 480 by 51, we get 9 and a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 15507.23529
Subtracting 459 from 480 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 12:
If we divide 210 by 51, we get 4 and a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 15507.235294
If we subtract 204 from 210, 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.

Moving on to step 13:
The number 51 fits into 60 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 15507.2352941
Subtract 51 from 60 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.

Moving on to step 14:
90 divided by 51 is 1 with a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 15507.23529411
If we subtract 51 from 90, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final result is 15507.23529411 with a remainder of 3.9e-08.