51237134 divided by 817 
Our goal is to divide 51237134 by 817.

Let's proceed to step 1:
The number 817 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 817

Step 2:
51 divided by 817 is 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 817

Moving on to step 3:
512 divided by 817 is 0 with a remainder of 512.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 512 after subtracting 0 from 512.
Include the next digit (3) from the dividend after 512, then repeat: 5123 / 817

On to step 4:
The number 817 fits into 5123 6 times, leaving a remainder of 221.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 4902 from 5123 to get 221.
Fetch the next digit (7) from the dividend, attach it to 221 and continue: 2217 / 817

Step 5:
The number 817 fits into 2217 2 times, leaving a remainder of 583.
Write down 2 as next digit of the result. 
Result so far: 62.0
Deduct 1634 from 2217 and we're left with 583.
Take the next digit (1) from the dividend and append it to 583, then repeat: 5831 / 817

Step 6:
5831 divided by 817 is 7 with a remainder of 112.
Put 7 as the next digit of the answer. 
Result so far: 627.0
Deduct 5719 from 5831 and we're left with 112.
Fetch the next digit (3) from the dividend, attach it to 112 and continue: 1123 / 817

Going ahead to step 7:
817 goes into 1123 1 times with a remainder of 306.
Record the quotient 1 as the next digit in the result. 
Result so far: 6271.0
Subtracting 817 from 1123 leaves us with 306.
Include the next digit (4) from the dividend after 306, then repeat: 3064 / 817

Going ahead to step 8:
The number 817 fits into 3064 3 times, leaving a remainder of 613.
The number 3 becomes the next digit in our result. 
Result so far: 62713.0
Deduct 2451 from 3064 and we're left with 613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6130, and continue the process.

Advancing to step 9:
817 goes into 6130 7 times with a remainder of 411.
Use 7 as the next digit of our solution. 
Result so far: 62713.7
Subtracting 5719 from 6130 leaves us with 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

On to step 10:
817 can be fit into 4110 5 times, resulting in a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 62713.75
If we subtract 4085 from 4110, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 11:
817 can be fit into 250 0 times, resulting in a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 62713.75
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 12:
817 goes into 2500 3 times with a remainder of 49.
Record the quotient 3 as the next digit in the result. 
Result so far: 62713.7503
Subtracting 2451 from 2500 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 13:
817 goes into 490 0 times with a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 62713.7503
Subtract 0 from 490 to get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Advancing to step 14:
817 goes into 4900 5 times with a remainder of 815.
Put 5 as the next digit of the answer. 
Result so far: 62713.750305
The remainder is 815 after subtracting 4085 from 4900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8150, and continue the process.

On to step 15:
8150 divided by 817 is 9 with a remainder of 797.
The next digit of our result is 9. 
Result so far: 62713.7503059
If we subtract 7353 from 8150, we get 797.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7970, and continue the process.

Let's proceed to step 16:
817 can be fit into 7970 9 times, resulting in a remainder of 617.
The next digit of our result is 9. 
Result so far: 62713.75030599
The remainder is 617 after subtracting 7353 from 7970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

The final outcome is 62713.75030599, with a leftover of 6.17e-07.