We're dividing 51587708 by 817 
We want to figure out the number of times 51587708 can be divided by 817.

Let's proceed to step 1:
If we divide 5 by 817, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 817

Moving on to step 2:
If we divide 51 by 817, we get 0 and a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Grab the next digit (5) from the dividend, add it to 51, then carry on: 515 / 817

Step 3:
When dividing 515 by 817, we get 0 with a remainder of 515.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 515 and we're left with 515.
Bring next digit (8) of the dividend behind the 515 and repeat the process: 5158 / 817

On to step 4:
817 can be fit into 5158 6 times, resulting in a remainder of 256.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 4902 away from 5158, we end up with 256.
Grab the next digit (7) from the dividend, add it to 256, then carry on: 2567 / 817

Let's proceed to step 5:
The number 817 fits into 2567 3 times, leaving a remainder of 116.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
If we subtract 2451 from 2567, we get 116.
Include the next digit (7) from the dividend after 116, then repeat: 1167 / 817

Moving on to step 6:
1167 divided by 817 is 1 with a remainder of 350.
The next digit of our result is 1. 
Result so far: 631.0
Subtract 817 from 1167 to get 350.
Bring next digit (0) of the dividend behind the 350 and repeat the process: 3500 / 817

Let's proceed to step 7:
3500 divided by 817 is 4 with a remainder of 232.
Write down 4 as next digit of the result. 
Result so far: 6314.0
The remainder is 232 after subtracting 3268 from 3500.
Fetch the next digit (8) from the dividend, attach it to 232 and continue: 2328 / 817

Going ahead to step 8:
817 can be fit into 2328 2 times, resulting in a remainder of 694.
Write down 2 as next digit of the result. 
Result so far: 63142.0
Subtract 1634 from 2328 to get 694.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

Moving on to step 9:
817 can be fit into 6940 8 times, resulting in a remainder of 404.
Put 8 as the next digit of the answer. 
Result so far: 63142.8
The remainder is 404 after subtracting 6536 from 6940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

On to step 10:
817 can be fit into 4040 4 times, resulting in a remainder of 772.
Record the quotient 4 as the next digit in the result. 
Result so far: 63142.84
Deduct 3268 from 4040 and we're left with 772.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7720, and continue the process.

On to step 11:
If we divide 7720 by 817, we get 9 and a remainder of 367.
Use 9 as the next digit of our solution. 
Result so far: 63142.849
If we subtract 7353 from 7720, we get 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Advancing to step 12:
The number 817 fits into 3670 4 times, leaving a remainder of 402.
The number 4 becomes the next digit in our result. 
Result so far: 63142.8494
Deduct 3268 from 3670 and we're left with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Step 13:
If we divide 4020 by 817, we get 4 and a remainder of 752.
Use 4 as the next digit of our solution. 
Result so far: 63142.84944
If we subtract 3268 from 4020, we get 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

The final outcome is 63142.84944, with a leftover of 0.000752.