85173142 ÷ 888 
Our goal is to divide 85173142 by 888.

Going ahead to step 1:
888 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 888

Going ahead to step 2:
The number 888 fits into 85 0 times, leaving a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Include the next digit (1) from the dividend after 85, then repeat: 851 / 888

Advancing to step 3:
888 goes into 851 0 times with a remainder of 851.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 851 after subtracting 0 from 851.
Grab the next digit (7) from the dividend, add it to 851, then carry on: 8517 / 888

Advancing to step 4:
If we divide 8517 by 888, we get 9 and a remainder of 525.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 7992 from 8517 leaves us with 525.
Bring next digit (3) of the dividend behind the 525 and repeat the process: 5253 / 888

Going ahead to step 5:
If we divide 5253 by 888, we get 5 and a remainder of 813.
The next digit of our result is 5. 
Result so far: 95.0
If we subtract 4440 from 5253, we get 813.
Take the next digit (1) from the dividend and append it to 813, then repeat: 8131 / 888

Step 6:
8131 divided by 888 is 9 with a remainder of 139.
The number 9 becomes the next digit in our result. 
Result so far: 959.0
If we subtract 7992 from 8131, we get 139.
Grab the next digit (4) from the dividend, add it to 139, then carry on: 1394 / 888

Step 7:
If we divide 1394 by 888, we get 1 and a remainder of 506.
Record the quotient 1 as the next digit in the result. 
Result so far: 9591.0
If we take 888 away from 1394, we end up with 506.
Append the next digit (2) from the dividend to 506 and continue with: 5062 / 888

On to step 8:
888 can be fit into 5062 5 times, resulting in a remainder of 622.
The next digit of our result is 5. 
Result so far: 95915.0
Subtract 4440 from 5062 to get 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Step 9:
6220 divided by 888 is 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 95915.7
If we take 6216 away from 6220, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
The number 888 fits into 40 0 times, leaving a remainder of 40.
The next digit of our result is 0. 
Result so far: 95915.7
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
400 divided by 888 is 0 with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 95915.7
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 95915.7 with a remainder of 0.04.