86631331 ÷ 899 
Our goal is to divide 86631331 by 899.

Step 1:
899 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
Deduct 0 from 8 and we're left with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 899

Step 2:
If we divide 86 by 899, we get 0 and a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Take the next digit (6) from the dividend and append it to 86, then repeat: 866 / 899

Advancing to step 3:
899 goes into 866 0 times with a remainder of 866.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 866 leaves us with 866.
Include the next digit (3) from the dividend after 866, then repeat: 8663 / 899

On to step 4:
8663 divided by 899 is 9 with a remainder of 572.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Deduct 8091 from 8663 and we're left with 572.
Bring next digit (1) of the dividend behind the 572 and repeat the process: 5721 / 899

Step 5:
When dividing 5721 by 899, we get 6 with a remainder of 327.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
If we take 5394 away from 5721, we end up with 327.
Include the next digit (3) from the dividend after 327, then repeat: 3273 / 899

Step 6:
The number 899 fits into 3273 3 times, leaving a remainder of 576.
The next digit of our result is 3. 
Result so far: 963.0
If we subtract 2697 from 3273, we get 576.
Fetch the next digit (3) from the dividend, attach it to 576 and continue: 5763 / 899

Advancing to step 7:
The number 899 fits into 5763 6 times, leaving a remainder of 369.
The next digit of our result is 6. 
Result so far: 9636.0
If we take 5394 away from 5763, we end up with 369.
Fetch the next digit (1) from the dividend, attach it to 369 and continue: 3691 / 899

Step 8:
899 goes into 3691 4 times with a remainder of 95.
Write down 4 as next digit of the result. 
Result so far: 96364.0
Deduct 3596 from 3691 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 9:
899 goes into 950 1 times with a remainder of 51.
Write down 1 as next digit of the result. 
Result so far: 96364.1
Subtracting 899 from 950 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 10:
If we divide 510 by 899, we get 0 and a remainder of 510.
Record the quotient 0 as the next digit in the result. 
Result so far: 96364.1
If we subtract 0 from 510, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Going ahead to step 11:
When dividing 5100 by 899, we get 5 with a remainder of 605.
The number 5 becomes the next digit in our result. 
Result so far: 96364.105
The remainder is 605 after subtracting 4495 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

On to step 12:
6050 divided by 899 is 6 with a remainder of 656.
Write down 6 as next digit of the result. 
Result so far: 96364.1056
If we subtract 5394 from 6050, we get 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Advancing to step 13:
899 goes into 6560 7 times with a remainder of 267.
Record the quotient 7 as the next digit in the result. 
Result so far: 96364.10567
Subtract 6293 from 6560 to get 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Going ahead to step 14:
If we divide 2670 by 899, we get 2 and a remainder of 872.
Use 2 as the next digit of our solution. 
Result so far: 96364.105672
Subtracting 1798 from 2670 leaves us with 872.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8720, and continue the process.

Going ahead to step 15:
If we divide 8720 by 899, we get 9 and a remainder of 629.
The number 9 becomes the next digit in our result. 
Result so far: 96364.1056729
Subtracting 8091 from 8720 leaves us with 629.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6290, and continue the process.

Step 16:
When dividing 6290 by 899, we get 6 with a remainder of 896.
The number 6 becomes the next digit in our result. 
Result so far: 96364.10567296
Subtract 5394 from 6290 to get 896.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8960, and continue the process.

Our division results in 96364.10567296 with a remaining 8.96e-07.