We look at the division of 831765 by 15 
We're looking to find how many times 15 goes into 831765.

On to step 1:
8 divided by 15 is 0 with 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.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 15

Advancing to step 2:
83 divided by 15 is 5 with a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 75 from 83, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 15

Going ahead to step 3:
The number 15 fits into 81 5 times, leaving a remainder of 6.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
If we take 75 away from 81, we end up with 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 15

Going ahead to step 4:
If we divide 67 by 15, we get 4 and a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 554.0
If we subtract 60 from 67, we get 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 15

Moving on to step 5:
76 divided by 15 is 5 with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 5545.0
Subtract 75 from 76 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 15

Advancing to step 6:
15 can be fit into 15 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 55451.0
Deduct 15 from 15 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 55451.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 55451.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 55451.0, with a leftover of 0.0.