We look at the division of 87658830 by 815 
Let's see how many times 815 fits into 87658830.

Going ahead to step 1:
815 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 815

Going ahead to step 2:
815 can be fit into 87 0 times, resulting in a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Take the next digit (6) from the dividend and append it to 87, then repeat: 876 / 815

Moving on to step 3:
876 divided by 815 is 1 with a remainder of 61.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 815 from 876, we get 61.
Take the next digit (5) from the dividend and append it to 61, then repeat: 615 / 815

Advancing to step 4:
815 can be fit into 615 0 times, resulting in a remainder of 615.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 615 after subtracting 0 from 615.
Bring next digit (8) of the dividend behind the 615 and repeat the process: 6158 / 815

Let's proceed to step 5:
815 can be fit into 6158 7 times, resulting in a remainder of 453.
Put 7 as the next digit of the answer. 
Result so far: 107.0
The remainder is 453 after subtracting 5705 from 6158.
Append the next digit (8) from the dividend to 453 and continue with: 4538 / 815

Going ahead to step 6:
If we divide 4538 by 815, we get 5 and a remainder of 463.
Record the quotient 5 as the next digit in the result. 
Result so far: 1075.0
If we subtract 4075 from 4538, we get 463.
Bring next digit (3) of the dividend behind the 463 and repeat the process: 4633 / 815

Advancing to step 7:
815 can be fit into 4633 5 times, resulting in a remainder of 558.
The next digit of our result is 5. 
Result so far: 10755.0
Subtract 4075 from 4633 to get 558.
Include the next digit (0) from the dividend after 558, then repeat: 5580 / 815

Moving on to step 8:
5580 divided by 815 is 6 with a remainder of 690.
Use 6 as the next digit of our solution. 
Result so far: 107556.0
The remainder is 690 after subtracting 4890 from 5580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Let's proceed to step 9:
815 can be fit into 6900 8 times, resulting in a remainder of 380.
Use 8 as the next digit of our solution. 
Result so far: 107556.8
The remainder is 380 after subtracting 6520 from 6900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 10:
3800 divided by 815 is 4 with a remainder of 540.
Record the quotient 4 as the next digit in the result. 
Result so far: 107556.84
If we subtract 3260 from 3800, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Advancing to step 11:
815 can be fit into 5400 6 times, resulting in a remainder of 510.
Put 6 as the next digit of the answer. 
Result so far: 107556.846
Subtracting 4890 from 5400 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

On to step 12:
The number 815 fits into 5100 6 times, leaving a remainder of 210.
The number 6 becomes the next digit in our result. 
Result so far: 107556.8466
If we take 4890 away from 5100, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Our division results in 107556.8466 with a remaining 0.0021.