87252343 ÷ 815 
Our goal is to divide 87252343 by 815.

On to step 1:
When dividing 8 by 815, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 815

Moving on to step 2:
815 goes into 87 0 times with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Grab the next digit (2) from the dividend, add it to 87, then carry on: 872 / 815

On to step 3:
When dividing 872 by 815, we get 1 with a remainder of 57.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 815 from 872 leaves us with 57.
Fetch the next digit (5) from the dividend, attach it to 57 and continue: 575 / 815

Advancing to step 4:
The number 815 fits into 575 0 times, leaving a remainder of 575.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 575 after subtracting 0 from 575.
Fetch the next digit (2) from the dividend, attach it to 575 and continue: 5752 / 815

Let's proceed to step 5:
5752 divided by 815 is 7 with a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
If we subtract 5705 from 5752, we get 47.
Append the next digit (3) from the dividend to 47 and continue with: 473 / 815

Let's proceed to step 6:
If we divide 473 by 815, we get 0 and a remainder of 473.
The next digit of our result is 0. 
Result so far: 1070.0
The remainder is 473 after subtracting 0 from 473.
Take the next digit (4) from the dividend and append it to 473, then repeat: 4734 / 815

On to step 7:
The number 815 fits into 4734 5 times, leaving a remainder of 659.
Put 5 as the next digit of the answer. 
Result so far: 10705.0
Deduct 4075 from 4734 and we're left with 659.
Fetch the next digit (3) from the dividend, attach it to 659 and continue: 6593 / 815

Advancing to step 8:
The number 815 fits into 6593 8 times, leaving a remainder of 73.
Use 8 as the next digit of our solution. 
Result so far: 107058.0
Subtracting 6520 from 6593 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 9:
When dividing 730 by 815, we get 0 with a remainder of 730.
The number 0 becomes the next digit in our result. 
Result so far: 107058.0
Subtracting 0 from 730 leaves us with 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Step 10:
When dividing 7300 by 815, we get 8 with a remainder of 780.
Write down 8 as next digit of the result. 
Result so far: 107058.08
The remainder is 780 after subtracting 6520 from 7300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Step 11:
If we divide 7800 by 815, we get 9 and a remainder of 465.
Write down 9 as next digit of the result. 
Result so far: 107058.089
Subtracting 7335 from 7800 leaves us with 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Advancing to step 12:
When dividing 4650 by 815, we get 5 with a remainder of 575.
Write down 5 as next digit of the result. 
Result so far: 107058.0895
If we take 4075 away from 4650, we end up with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Going ahead to step 13:
When dividing 5750 by 815, we get 7 with a remainder of 45.
Write down 7 as next digit of the result. 
Result so far: 107058.08957
If we take 5705 away from 5750, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 14:
450 divided by 815 is 0 with a remainder of 450.
Put 0 as the next digit of the answer. 
Result so far: 107058.08957
If we subtract 0 from 450, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 15:
815 goes into 4500 5 times with a remainder of 425.
Write down 5 as next digit of the result. 
Result so far: 107058.0895705
Subtracting 4075 from 4500 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

On to step 16:
If we divide 4250 by 815, we get 5 and a remainder of 175.
The number 5 becomes the next digit in our result. 
Result so far: 107058.08957055
The remainder is 175 after subtracting 4075 from 4250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

After the division, we end up with 107058.08957055 and a remainder of 1.75e-07.