We look at the division of 81594174 by 171 
Our goal is to divide 81594174 by 171.

Let's proceed to step 1:
If we divide 8 by 171, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 171

Moving on to step 2:
The number 171 fits into 81 0 times, leaving a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Include the next digit (5) from the dividend after 81, then repeat: 815 / 171

Let's proceed to step 3:
If we divide 815 by 171, we get 4 and a remainder of 131.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 684 from 815 to get 131.
Bring next digit (9) of the dividend behind the 131 and repeat the process: 1319 / 171

On to step 4:
The number 171 fits into 1319 7 times, leaving a remainder of 122.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
If we subtract 1197 from 1319, we get 122.
Grab the next digit (4) from the dividend, add it to 122, then carry on: 1224 / 171

On to step 5:
1224 divided by 171 is 7 with a remainder of 27.
Write down 7 as next digit of the result. 
Result so far: 477.0
If we take 1197 away from 1224, we end up with 27.
Take the next digit (1) from the dividend and append it to 27, then repeat: 271 / 171

On to step 6:
171 can be fit into 271 1 times, resulting in a remainder of 100.
The number 1 becomes the next digit in our result. 
Result so far: 4771.0
If we subtract 171 from 271, we get 100.
Grab the next digit (7) from the dividend, add it to 100, then carry on: 1007 / 171

On to step 7:
1007 divided by 171 is 5 with a remainder of 152.
Record the quotient 5 as the next digit in the result. 
Result so far: 47715.0
If we take 855 away from 1007, we end up with 152.
Include the next digit (4) from the dividend after 152, then repeat: 1524 / 171

Advancing to step 8:
If we divide 1524 by 171, we get 8 and a remainder of 156.
The number 8 becomes the next digit in our result. 
Result so far: 477158.0
If we subtract 1368 from 1524, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Moving on to step 9:
171 goes into 1560 9 times with a remainder of 21.
The next digit of our result is 9. 
Result so far: 477158.9
Deduct 1539 from 1560 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 10:
171 can be fit into 210 1 times, resulting in a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 477158.91
The remainder is 39 after subtracting 171 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 11:
When dividing 390 by 171, we get 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 477158.912
Subtracting 342 from 390 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 12:
171 can be fit into 480 2 times, resulting in a remainder of 138.
Use 2 as the next digit of our solution. 
Result so far: 477158.9122
Deduct 342 from 480 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

The final result is 477158.9122 with a remainder of 0.00138.