80086355 ÷ 923 
Let's see how many times 923 fits into 80086355.

Going ahead to step 1:
When dividing 8 by 923, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 923

On to step 2:
The number 923 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Grab the next digit (0) from the dividend, add it to 80, then carry on: 800 / 923

On to step 3:
If we divide 800 by 923, we get 0 and a remainder of 800.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 800 and we're left with 800.
Grab the next digit (8) from the dividend, add it to 800, then carry on: 8008 / 923

On to step 4:
923 can be fit into 8008 8 times, resulting in a remainder of 624.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 7384 from 8008 leaves us with 624.
Append the next digit (6) from the dividend to 624 and continue with: 6246 / 923

On to step 5:
923 goes into 6246 6 times with a remainder of 708.
Write down 6 as next digit of the result. 
Result so far: 86.0
If we take 5538 away from 6246, we end up with 708.
Grab the next digit (3) from the dividend, add it to 708, then carry on: 7083 / 923

Moving on to step 6:
The number 923 fits into 7083 7 times, leaving a remainder of 622.
The next digit of our result is 7. 
Result so far: 867.0
The remainder is 622 after subtracting 6461 from 7083.
Include the next digit (5) from the dividend after 622, then repeat: 6225 / 923

Moving on to step 7:
923 goes into 6225 6 times with a remainder of 687.
The number 6 becomes the next digit in our result. 
Result so far: 8676.0
The remainder is 687 after subtracting 5538 from 6225.
Include the next digit (5) from the dividend after 687, then repeat: 6875 / 923

Moving on to step 8:
The number 923 fits into 6875 7 times, leaving a remainder of 414.
Put 7 as the next digit of the answer. 
Result so far: 86767.0
If we take 6461 away from 6875, we end up with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Moving on to step 9:
If we divide 4140 by 923, we get 4 and a remainder of 448.
Put 4 as the next digit of the answer. 
Result so far: 86767.4
If we subtract 3692 from 4140, we get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Going ahead to step 10:
The number 923 fits into 4480 4 times, leaving a remainder of 788.
The number 4 becomes the next digit in our result. 
Result so far: 86767.44
If we take 3692 away from 4480, we end up with 788.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7880, and continue the process.

Our division results in 86767.44 with a remaining 0.788.