We're dividing 86143936 by 813 
Our goal is to divide 86143936 by 813.

Going ahead to step 1:
If we divide 8 by 813, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 813

On to step 2:
The number 813 fits into 86 0 times, leaving a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Append the next digit (1) from the dividend to 86 and continue with: 861 / 813

On to step 3:
If we divide 861 by 813, we get 1 and a remainder of 48.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 48 after subtracting 813 from 861.
Append the next digit (4) from the dividend to 48 and continue with: 484 / 813

Moving on to step 4:
If we divide 484 by 813, we get 0 and a remainder of 484.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 484 to get 484.
Grab the next digit (3) from the dividend, add it to 484, then carry on: 4843 / 813

Going ahead to step 5:
The number 813 fits into 4843 5 times, leaving a remainder of 778.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
Deduct 4065 from 4843 and we're left with 778.
Bring next digit (9) of the dividend behind the 778 and repeat the process: 7789 / 813

Going ahead to step 6:
When dividing 7789 by 813, we get 9 with a remainder of 472.
Write down 9 as next digit of the result. 
Result so far: 1059.0
Deduct 7317 from 7789 and we're left with 472.
Grab the next digit (3) from the dividend, add it to 472, then carry on: 4723 / 813

Advancing to step 7:
The number 813 fits into 4723 5 times, leaving a remainder of 658.
Write down 5 as next digit of the result. 
Result so far: 10595.0
Deduct 4065 from 4723 and we're left with 658.
Bring next digit (6) of the dividend behind the 658 and repeat the process: 6586 / 813

Going ahead to step 8:
The number 813 fits into 6586 8 times, leaving a remainder of 82.
Write down 8 as next digit of the result. 
Result so far: 105958.0
Subtract 6504 from 6586 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 9:
When dividing 820 by 813, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 105958.1
The remainder is 7 after subtracting 813 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 10:
If we divide 70 by 813, we get 0 and a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 105958.1
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 11:
700 divided by 813 is 0 with a remainder of 700.
The next digit of our result is 0. 
Result so far: 105958.1
The remainder is 700 after subtracting 0 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The final result is 105958.1 with a remainder of 0.07.