Let's divide 86641215 by 574
Our goal is to divide 86641215 by 574.

Advancing to step 1:
If we divide 8 by 574, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 574

Moving on to step 2:
86 divided by 574 is 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Bring next digit (6) of the dividend behind the 86 and repeat the process: 866 / 574

Let's proceed to step 3:
574 can be fit into 866 1 times, resulting in a remainder of 292.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 574 from 866 and we're left with 292.
Append the next digit (4) from the dividend to 292 and continue with: 2924 / 574

Let's proceed to step 4:
If we divide 2924 by 574, we get 5 and a remainder of 54.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 2870 from 2924, we get 54.
Bring next digit (1) of the dividend behind the 54 and repeat the process: 541 / 574

On to step 5:
The number 574 fits into 541 0 times, leaving a remainder of 541.
Write down 0 as next digit of the result. 
Result so far: 150.0
If we subtract 0 from 541, we get 541.
Bring next digit (2) of the dividend behind the 541 and repeat the process: 5412 / 574

On to step 6:
The number 574 fits into 5412 9 times, leaving a remainder of 246.
Write down 9 as next digit of the result. 
Result so far: 1509.0
Subtract 5166 from 5412 to get 246.
Take the next digit (1) from the dividend and append it to 246, then repeat: 2461 / 574

Advancing to step 7:
574 goes into 2461 4 times with a remainder of 165.
Record the quotient 4 as the next digit in the result. 
Result so far: 15094.0
Subtracting 2296 from 2461 leaves us with 165.
Take the next digit (5) from the dividend and append it to 165, then repeat: 1655 / 574

Advancing to step 8:
574 goes into 1655 2 times with a remainder of 507.
The next digit of our result is 2. 
Result so far: 150942.0
Subtracting 1148 from 1655 leaves us with 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

Going ahead to step 9:
If we divide 5070 by 574, we get 8 and a remainder of 478.
Use 8 as the next digit of our solution. 
Result so far: 150942.8
Deduct 4592 from 5070 and we're left with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Going ahead to step 10:
If we divide 4780 by 574, we get 8 and a remainder of 188.
Put 8 as the next digit of the answer. 
Result so far: 150942.88
Subtracting 4592 from 4780 leaves us with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

The final result is 150942.88 with a remainder of 0.188.