We look at the division of 861736 by 51 
We're looking to find how many times 51 goes into 861736.

On to step 1:
51 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 51

Advancing to step 2:
When dividing 86 by 51, we get 1 with a remainder of 35.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 35 after subtracting 51 from 86.
Include the next digit (1) from the dividend after 35, then repeat: 351 / 51

Let's proceed to step 3:
351 divided by 51 is 6 with a remainder of 45.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 306 from 351 and we're left with 45.
Include the next digit (7) from the dividend after 45, then repeat: 457 / 51

Step 4:
457 divided by 51 is 8 with a remainder of 49.
Write down 8 as next digit of the result. 
Result so far: 168.0
Deduct 408 from 457 and we're left with 49.
Grab the next digit (3) from the dividend, add it to 49, then carry on: 493 / 51

Step 5:
If we divide 493 by 51, we get 9 and a remainder of 34.
Write down 9 as next digit of the result. 
Result so far: 1689.0
The remainder is 34 after subtracting 459 from 493.
Append the next digit (6) from the dividend to 34 and continue with: 346 / 51

Let's proceed to step 6:
If we divide 346 by 51, we get 6 and a remainder of 40.
The next digit of our result is 6. 
Result so far: 16896.0
If we take 306 away from 346, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 7:
51 goes into 400 7 times with a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 16896.7
Subtract 357 from 400 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 8:
When dividing 430 by 51, we get 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 16896.78
Subtracting 408 from 430 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 9:
The number 51 fits into 220 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 16896.784
If we subtract 204 from 220, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
If we divide 160 by 51, we get 3 and a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 16896.7843
Subtracting 153 from 160 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 11:
When dividing 70 by 51, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 16896.78431
Subtract 51 from 70 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 12:
51 can be fit into 190 3 times, resulting in a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 16896.784313
The remainder is 37 after subtracting 153 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 13:
The number 51 fits into 370 7 times, leaving a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 16896.7843137
If we subtract 357 from 370, 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.

Step 14:
The number 51 fits into 130 2 times, leaving a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 16896.78431372
If we subtract 102 from 130, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final result is 16896.78431372 with a remainder of 2.8e-08.