We're dividing 91171 by 23 
We're looking to find how many times 23 goes into 91171.

Advancing to step 1:
When dividing 9 by 23, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 23

Moving on to step 2:
If we divide 91 by 23, we get 3 and a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 69 from 91 and we're left with 22.
Take the next digit (1) from the dividend and append it to 22, then repeat: 221 / 23

Advancing to step 3:
23 goes into 221 9 times with a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 39.0
Deduct 207 from 221 and we're left with 14.
Take the next digit (7) from the dividend and append it to 14, then repeat: 147 / 23

Step 4:
23 can be fit into 147 6 times, resulting in a remainder of 9.
Put 6 as the next digit of the answer. 
Result so far: 396.0
Deduct 138 from 147 and we're left with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 23

Moving on to step 5:
If we divide 91 by 23, we get 3 and a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 3963.0
Subtract 69 from 91 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 6:
When dividing 220 by 23, we get 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 3963.9
Subtracting 207 from 220 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
23 goes into 130 5 times with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 3963.95
If we take 115 away from 130, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
23 can be fit into 150 6 times, resulting in a remainder of 12.
The next digit of our result is 6. 
Result so far: 3963.956
If we subtract 138 from 150, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
120 divided by 23 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 3963.9565
Deduct 115 from 120 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 10:
The number 23 fits into 50 2 times, leaving a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 3963.95652
The remainder is 4 after subtracting 46 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
The number 23 fits into 40 1 times, leaving a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 3963.956521
Deduct 23 from 40 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 12:
If we divide 170 by 23, we get 7 and a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 3963.9565217
If we subtract 161 from 170, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 13:
The number 23 fits into 90 3 times, leaving a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 3963.95652173
If we subtract 69 from 90, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

After the division, we end up with 3963.95652173 and a remainder of 2.1e-08.