We look at the division of 91390062 by 171 
We want to divide 91390062 by 171.

Going ahead to step 1:
When dividing 9 by 171, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 171

Step 2:
171 goes into 91 0 times with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 91, we get 91.
Include the next digit (3) from the dividend after 91, then repeat: 913 / 171

Let's proceed to step 3:
171 can be fit into 913 5 times, resulting in a remainder of 58.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 855 away from 913, we end up with 58.
Grab the next digit (9) from the dividend, add it to 58, then carry on: 589 / 171

On to step 4:
When dividing 589 by 171, we get 3 with a remainder of 76.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
If we take 513 away from 589, we end up with 76.
Include the next digit (0) from the dividend after 76, then repeat: 760 / 171

Going ahead to step 5:
If we divide 760 by 171, we get 4 and a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 534.0
Deduct 684 from 760 and we're left with 76.
Take the next digit (0) from the dividend and append it to 76, then repeat: 760 / 171

Moving on to step 6:
760 divided by 171 is 4 with a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 5344.0
The remainder is 76 after subtracting 684 from 760.
Fetch the next digit (6) from the dividend, attach it to 76 and continue: 766 / 171

Advancing to step 7:
171 can be fit into 766 4 times, resulting in a remainder of 82.
Record the quotient 4 as the next digit in the result. 
Result so far: 53444.0
If we subtract 684 from 766, we get 82.
Fetch the next digit (2) from the dividend, attach it to 82 and continue: 822 / 171

Going ahead to step 8:
The number 171 fits into 822 4 times, leaving a remainder of 138.
Record the quotient 4 as the next digit in the result. 
Result so far: 534444.0
If we take 684 away from 822, we end up 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.

Advancing to step 9:
171 goes into 1380 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 534444.8
The remainder is 12 after subtracting 1368 from 1380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 10:
171 can be fit into 120 0 times, resulting in a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 534444.8
If we subtract 0 from 120, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 11:
1200 divided by 171 is 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 534444.807
The remainder is 3 after subtracting 1197 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 12:
The number 171 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 534444.807
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 13:
171 goes into 300 1 times with a remainder of 129.
Use 1 as the next digit of our solution. 
Result so far: 534444.80701
Subtracting 171 from 300 leaves us with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Going ahead to step 14:
171 goes into 1290 7 times with a remainder of 93.
The next digit of our result is 7. 
Result so far: 534444.807017
Subtract 1197 from 1290 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Let's proceed to step 15:
171 goes into 930 5 times with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 534444.8070175
Subtracting 855 from 930 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 16:
171 can be fit into 750 4 times, resulting in a remainder of 66.
The next digit of our result is 4. 
Result so far: 534444.80701754
If we subtract 684 from 750, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final outcome is 534444.80701754, with a leftover of 6.6e-08.