We divide 51512868 by 799
We're looking to find how many times 799 goes into 51512868.

On to step 1:
If we divide 5 by 799, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 799

Going ahead to step 2:
The number 799 fits into 51 0 times, leaving a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Fetch the next digit (5) from the dividend, attach it to 51 and continue: 515 / 799

Step 3:
799 can be fit into 515 0 times, resulting in a remainder of 515.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 515 leaves us with 515.
Bring next digit (1) of the dividend behind the 515 and repeat the process: 5151 / 799

Let's proceed to step 4:
When dividing 5151 by 799, we get 6 with a remainder of 357.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 4794 away from 5151, we end up with 357.
Grab the next digit (2) from the dividend, add it to 357, then carry on: 3572 / 799

Step 5:
When dividing 3572 by 799, we get 4 with a remainder of 376.
Put 4 as the next digit of the answer. 
Result so far: 64.0
Subtract 3196 from 3572 to get 376.
Append the next digit (8) from the dividend to 376 and continue with: 3768 / 799

On to step 6:
799 can be fit into 3768 4 times, resulting in a remainder of 572.
Record the quotient 4 as the next digit in the result. 
Result so far: 644.0
Deduct 3196 from 3768 and we're left with 572.
Append the next digit (6) from the dividend to 572 and continue with: 5726 / 799

On to step 7:
When dividing 5726 by 799, we get 7 with a remainder of 133.
The number 7 becomes the next digit in our result. 
Result so far: 6447.0
Subtracting 5593 from 5726 leaves us with 133.
Append the next digit (8) from the dividend to 133 and continue with: 1338 / 799

On to step 8:
1338 divided by 799 is 1 with a remainder of 539.
The next digit of our result is 1. 
Result so far: 64471.0
If we subtract 799 from 1338, we get 539.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5390, and continue the process.

On to step 9:
799 goes into 5390 6 times with a remainder of 596.
Write down 6 as next digit of the result. 
Result so far: 64471.6
Deduct 4794 from 5390 and we're left with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Going ahead to step 10:
799 can be fit into 5960 7 times, resulting in a remainder of 367.
The number 7 becomes the next digit in our result. 
Result so far: 64471.67
If we take 5593 away from 5960, we end up with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Moving on to step 11:
If we divide 3670 by 799, we get 4 and a remainder of 474.
Use 4 as the next digit of our solution. 
Result so far: 64471.674
Subtracting 3196 from 3670 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Step 12:
4740 divided by 799 is 5 with a remainder of 745.
Write down 5 as next digit of the result. 
Result so far: 64471.6745
Subtracting 3995 from 4740 leaves us with 745.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7450, and continue the process.

Advancing to step 13:
799 goes into 7450 9 times with a remainder of 259.
Record the quotient 9 as the next digit in the result. 
Result so far: 64471.67459
Deduct 7191 from 7450 and we're left with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Step 14:
The number 799 fits into 2590 3 times, leaving a remainder of 193.
Record the quotient 3 as the next digit in the result. 
Result so far: 64471.674593
If we subtract 2397 from 2590, we get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Step 15:
1930 divided by 799 is 2 with a remainder of 332.
Put 2 as the next digit of the answer. 
Result so far: 64471.6745932
If we subtract 1598 from 1930, we get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Advancing to step 16:
If we divide 3320 by 799, we get 4 and a remainder of 124.
Write down 4 as next digit of the result. 
Result so far: 64471.67459324
If we subtract 3196 from 3320, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

The final result is 64471.67459324 with a remainder of 1.24e-07.