We look at the division of 71178962 by 809 
Let's see how many times 809 fits into 71178962.

Advancing to step 1:
The number 809 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 809

On to step 2:
71 divided by 809 is 0 with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Include the next digit (1) from the dividend after 71, then repeat: 711 / 809

Step 3:
711 divided by 809 is 0 with a remainder of 711.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 711 leaves us with 711.
Append the next digit (7) from the dividend to 711 and continue with: 7117 / 809

On to step 4:
7117 divided by 809 is 8 with a remainder of 645.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 645 after subtracting 6472 from 7117.
Append the next digit (8) from the dividend to 645 and continue with: 6458 / 809

Moving on to step 5:
809 goes into 6458 7 times with a remainder of 795.
Write down 7 as next digit of the result. 
Result so far: 87.0
Deduct 5663 from 6458 and we're left with 795.
Append the next digit (9) from the dividend to 795 and continue with: 7959 / 809

Step 6:
7959 divided by 809 is 9 with a remainder of 678.
The number 9 becomes the next digit in our result. 
Result so far: 879.0
The remainder is 678 after subtracting 7281 from 7959.
Bring next digit (6) of the dividend behind the 678 and repeat the process: 6786 / 809

On to step 7:
When dividing 6786 by 809, we get 8 with a remainder of 314.
The next digit of our result is 8. 
Result so far: 8798.0
Subtract 6472 from 6786 to get 314.
Fetch the next digit (2) from the dividend, attach it to 314 and continue: 3142 / 809

Step 8:
3142 divided by 809 is 3 with a remainder of 715.
The next digit of our result is 3. 
Result so far: 87983.0
If we take 2427 away from 3142, we end up with 715.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7150, and continue the process.

Advancing to step 9:
7150 divided by 809 is 8 with a remainder of 678.
The number 8 becomes the next digit in our result. 
Result so far: 87983.8
If we subtract 6472 from 7150, we get 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

On to step 10:
809 can be fit into 6780 8 times, resulting in a remainder of 308.
Write down 8 as next digit of the result. 
Result so far: 87983.88
If we subtract 6472 from 6780, we get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

After the division, we end up with 87983.88 and a remainder of 0.308.