We're dividing 87639483 by 99 
We want to figure out the number of times 87639483 can be divided by 99.

Going ahead to step 1:
If we divide 8 by 99, 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.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 99

On to step 2:
99 goes into 87 0 times with a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Grab the next digit (6) from the dividend, add it to 87, then carry on: 876 / 99

Advancing to step 3:
99 goes into 876 8 times with a remainder of 84.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 792 from 876 to get 84.
Append the next digit (3) from the dividend to 84 and continue with: 843 / 99

Let's proceed to step 4:
99 goes into 843 8 times with a remainder of 51.
Record the quotient 8 as the next digit in the result. 
Result so far: 88.0
Subtract 792 from 843 to get 51.
Append the next digit (9) from the dividend to 51 and continue with: 519 / 99

Advancing to step 5:
If we divide 519 by 99, we get 5 and a remainder of 24.
The next digit of our result is 5. 
Result so far: 885.0
If we subtract 495 from 519, we get 24.
Include the next digit (4) from the dividend after 24, then repeat: 244 / 99

Moving on to step 6:
244 divided by 99 is 2 with a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 8852.0
Deduct 198 from 244 and we're left with 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 99

Let's proceed to step 7:
If we divide 468 by 99, we get 4 and a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 88524.0
Subtract 396 from 468 to get 72.
Grab the next digit (3) from the dividend, add it to 72, then carry on: 723 / 99

Step 8:
When dividing 723 by 99, we get 7 with a remainder of 30.
Put 7 as the next digit of the answer. 
Result so far: 885247.0
If we subtract 693 from 723, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
The number 99 fits into 300 3 times, leaving a remainder of 3.
The next digit of our result is 3. 
Result so far: 885247.3
Subtract 297 from 300 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 10:
99 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 885247.3
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 11:
The number 99 fits into 300 3 times, leaving a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 885247.303
Subtracting 297 from 300 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 12:
If we divide 30 by 99, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 885247.303
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 13:
The number 99 fits into 300 3 times, leaving a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 885247.30303
Subtract 297 from 300 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 14:
When dividing 30 by 99, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 885247.30303
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 15:
When dividing 300 by 99, we get 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 885247.3030303
The remainder is 3 after subtracting 297 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 16:
99 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 885247.3030303
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 885247.3030303, with a leftover of 3e-08.