We look at the division of 86699579 by 899 
We're looking to find how many times 899 goes into 86699579.

Moving on to step 1:
899 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 899

On to step 2:
899 can be fit into 86 0 times, resulting in a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Fetch the next digit (6) from the dividend, attach it to 86 and continue: 866 / 899

Moving on to step 3:
899 can be fit into 866 0 times, resulting in a remainder of 866.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 866, we end up with 866.
Take the next digit (9) from the dividend and append it to 866, then repeat: 8669 / 899

On to step 4:
899 goes into 8669 9 times with a remainder of 578.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 8091 from 8669, we get 578.
Bring next digit (9) of the dividend behind the 578 and repeat the process: 5789 / 899

Going ahead to step 5:
When dividing 5789 by 899, we get 6 with a remainder of 395.
The next digit of our result is 6. 
Result so far: 96.0
Subtracting 5394 from 5789 leaves us with 395.
Take the next digit (5) from the dividend and append it to 395, then repeat: 3955 / 899

Advancing to step 6:
The number 899 fits into 3955 4 times, leaving a remainder of 359.
Record the quotient 4 as the next digit in the result. 
Result so far: 964.0
Deduct 3596 from 3955 and we're left with 359.
Take the next digit (7) from the dividend and append it to 359, then repeat: 3597 / 899

Step 7:
When dividing 3597 by 899, we get 4 with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 9644.0
If we take 3596 away from 3597, we end up with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 899

Advancing to step 8:
If we divide 19 by 899, we get 0 and a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 96440.0
Deduct 0 from 19 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
When dividing 190 by 899, we get 0 with a remainder of 190.
The next digit of our result is 0. 
Result so far: 96440.0
If we take 0 away from 190, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 10:
If we divide 1900 by 899, we get 2 and a remainder of 102.
The next digit of our result is 2. 
Result so far: 96440.02
Deduct 1798 from 1900 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 11:
If we divide 1020 by 899, we get 1 and a remainder of 121.
Put 1 as the next digit of the answer. 
Result so far: 96440.021
Deduct 899 from 1020 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Moving on to step 12:
899 goes into 1210 1 times with a remainder of 311.
Write down 1 as next digit of the result. 
Result so far: 96440.0211
If we subtract 899 from 1210, we get 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

The final outcome is 96440.0211, with a leftover of 0.00311.