We look at the division of 88542989 by 993 
We want to divide 88542989 by 993.

Going ahead to step 1:
When dividing 8 by 993, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 993

Going ahead to step 2:
If we divide 88 by 993, we get 0 and a remainder of 88.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 88 after subtracting 0 from 88.
Grab the next digit (5) from the dividend, add it to 88, then carry on: 885 / 993

On to step 3:
The number 993 fits into 885 0 times, leaving a remainder of 885.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 885, we get 885.
Fetch the next digit (4) from the dividend, attach it to 885 and continue: 8854 / 993

Advancing to step 4:
When dividing 8854 by 993, we get 8 with a remainder of 910.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 7944 away from 8854, we end up with 910.
Grab the next digit (2) from the dividend, add it to 910, then carry on: 9102 / 993

Advancing to step 5:
993 goes into 9102 9 times with a remainder of 165.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
If we subtract 8937 from 9102, we get 165.
Append the next digit (9) from the dividend to 165 and continue with: 1659 / 993

Advancing to step 6:
993 can be fit into 1659 1 times, resulting in a remainder of 666.
Write down 1 as next digit of the result. 
Result so far: 891.0
If we take 993 away from 1659, we end up with 666.
Bring next digit (8) of the dividend behind the 666 and repeat the process: 6668 / 993

On to step 7:
993 goes into 6668 6 times with a remainder of 710.
Use 6 as the next digit of our solution. 
Result so far: 8916.0
Subtract 5958 from 6668 to get 710.
Include the next digit (9) from the dividend after 710, then repeat: 7109 / 993

Let's proceed to step 8:
993 goes into 7109 7 times with a remainder of 158.
Put 7 as the next digit of the answer. 
Result so far: 89167.0
Deduct 6951 from 7109 and we're left with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Moving on to step 9:
If we divide 1580 by 993, we get 1 and a remainder of 587.
Put 1 as the next digit of the answer. 
Result so far: 89167.1
Deduct 993 from 1580 and we're left with 587.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5870, and continue the process.

Step 10:
5870 divided by 993 is 5 with a remainder of 905.
The next digit of our result is 5. 
Result so far: 89167.15
If we subtract 4965 from 5870, we get 905.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9050, and continue the process.

Advancing to step 11:
9050 divided by 993 is 9 with a remainder of 113.
The number 9 becomes the next digit in our result. 
Result so far: 89167.159
If we subtract 8937 from 9050, we get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Moving on to step 12:
993 goes into 1130 1 times with a remainder of 137.
Record the quotient 1 as the next digit in the result. 
Result so far: 89167.1591
Subtract 993 from 1130 to get 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Moving on to step 13:
When dividing 1370 by 993, we get 1 with a remainder of 377.
The number 1 becomes the next digit in our result. 
Result so far: 89167.15911
If we take 993 away from 1370, we end up with 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3770, and continue the process.

The final result is 89167.15911 with a remainder of 0.000377.