Let's divide 87521015 by 912
We're looking to find how many times 912 goes into 87521015.

On to step 1:
When dividing 8 by 912, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 912

On to step 2:
87 divided by 912 is 0 with a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Append the next digit (5) from the dividend to 87 and continue with: 875 / 912

Moving on to step 3:
When dividing 875 by 912, we get 0 with a remainder of 875.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 875, we get 875.
Bring next digit (2) of the dividend behind the 875 and repeat the process: 8752 / 912

Let's proceed to step 4:
When dividing 8752 by 912, we get 9 with a remainder of 544.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 8208 away from 8752, we end up with 544.
Append the next digit (1) from the dividend to 544 and continue with: 5441 / 912

Moving on to step 5:
If we divide 5441 by 912, we get 5 and a remainder of 881.
Record the quotient 5 as the next digit in the result. 
Result so far: 95.0
Subtract 4560 from 5441 to get 881.
Take the next digit (0) from the dividend and append it to 881, then repeat: 8810 / 912

Step 6:
8810 divided by 912 is 9 with a remainder of 602.
The number 9 becomes the next digit in our result. 
Result so far: 959.0
Deduct 8208 from 8810 and we're left with 602.
Fetch the next digit (1) from the dividend, attach it to 602 and continue: 6021 / 912

Step 7:
912 can be fit into 6021 6 times, resulting in a remainder of 549.
The next digit of our result is 6. 
Result so far: 9596.0
If we subtract 5472 from 6021, we get 549.
Fetch the next digit (5) from the dividend, attach it to 549 and continue: 5495 / 912

Going ahead to step 8:
If we divide 5495 by 912, we get 6 and a remainder of 23.
Put 6 as the next digit of the answer. 
Result so far: 95966.0
If we take 5472 away from 5495, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 9:
230 divided by 912 is 0 with a remainder of 230.
Record the quotient 0 as the next digit in the result. 
Result so far: 95966.0
The remainder is 230 after subtracting 0 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 10:
912 goes into 2300 2 times with a remainder of 476.
The next digit of our result is 2. 
Result so far: 95966.02
If we subtract 1824 from 2300, we get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

On to step 11:
If we divide 4760 by 912, we get 5 and a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 95966.025
If we take 4560 away from 4760, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 12:
When dividing 2000 by 912, we get 2 with a remainder of 176.
Write down 2 as next digit of the result. 
Result so far: 95966.0252
If we take 1824 away from 2000, we end up with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Moving on to step 13:
912 can be fit into 1760 1 times, resulting in a remainder of 848.
Record the quotient 1 as the next digit in the result. 
Result so far: 95966.02521
Deduct 912 from 1760 and we're left with 848.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

Let's proceed to step 14:
The number 912 fits into 8480 9 times, leaving a remainder of 272.
The number 9 becomes the next digit in our result. 
Result so far: 95966.025219
Deduct 8208 from 8480 and we're left with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 15:
If we divide 2720 by 912, we get 2 and a remainder of 896.
Use 2 as the next digit of our solution. 
Result so far: 95966.0252192
Subtracting 1824 from 2720 leaves us with 896.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8960, and continue the process.

Step 16:
The number 912 fits into 8960 9 times, leaving a remainder of 752.
Use 9 as the next digit of our solution. 
Result so far: 95966.02521929
Subtracting 8208 from 8960 leaves us with 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

After the division, we end up with 95966.02521929 and a remainder of 7.52e-07.