We're dividing 856731 by 51 
Our goal is to divide 856731 by 51.

Moving on to step 1:
The number 51 fits into 8 0 times, leaving 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.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 51

Moving on to step 2:
The number 51 fits into 85 1 times, leaving a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 51 away from 85, we end up with 34.
Bring next digit (6) of the dividend behind the 34 and repeat the process: 346 / 51

Going ahead to step 3:
When dividing 346 by 51, we get 6 with a remainder of 40.
The next digit of our result is 6. 
Result so far: 16.0
The remainder is 40 after subtracting 306 from 346.
Take the next digit (7) from the dividend and append it to 40, then repeat: 407 / 51

Going ahead to step 4:
The number 51 fits into 407 7 times, leaving a remainder of 50.
Put 7 as the next digit of the answer. 
Result so far: 167.0
If we take 357 away from 407, we end up with 50.
Grab the next digit (3) from the dividend, add it to 50, then carry on: 503 / 51

Going ahead to step 5:
The number 51 fits into 503 9 times, leaving a remainder of 44.
Put 9 as the next digit of the answer. 
Result so far: 1679.0
Subtract 459 from 503 to get 44.
Append the next digit (1) from the dividend to 44 and continue with: 441 / 51

Step 6:
51 can be fit into 441 8 times, resulting in a remainder of 33.
Write down 8 as next digit of the result. 
Result so far: 16798.0
Deduct 408 from 441 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
330 divided by 51 is 6 with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 16798.6
If we subtract 306 from 330, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
If we divide 240 by 51, we get 4 and a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 16798.64
Subtracting 204 from 240 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 9:
360 divided by 51 is 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 16798.647
Subtracting 357 from 360 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 10:
When dividing 30 by 51, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 16798.647
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
The number 51 fits into 300 5 times, leaving a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 16798.64705
Deduct 255 from 300 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 12:
When dividing 450 by 51, we get 8 with a remainder of 42.
The next digit of our result is 8. 
Result so far: 16798.647058
Subtracting 408 from 450 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 13:
420 divided by 51 is 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 16798.6470588
If we subtract 408 from 420, 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.

The final outcome is 16798.6470588, with a leftover of 1.2e-07.