We're dividing 831539 by 3 
Let's see how many times 3 fits into 831539.

Advancing to step 1:
3 can be fit into 8 2 times, resulting in a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 6 from 8, we get 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 3

Going ahead to step 2:
When dividing 23 by 3, we get 7 with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 27.0
Subtract 21 from 23 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 3

Advancing to step 3:
21 divided by 3 is 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 277.0
Subtracting 21 from 21 leaves us with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 3

Moving on to step 4:
3 goes into 5 1 times with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 2771.0
Subtracting 3 from 5 leaves us with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 3

On to step 5:
The number 3 fits into 23 7 times, leaving a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 27717.0
Deduct 21 from 23 and we're left with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 3

Going ahead to step 6:
3 goes into 29 9 times with a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 277179.0
Subtract 27 from 29 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
3 goes into 20 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 277179.6
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
When dividing 20 by 3, we get 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 277179.66
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 277179.66 with a remainder of 0.002.