91108456 divided by 172 
Let's see how many times 172 fits into 91108456.

Going ahead to step 1:
When dividing 9 by 172, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
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 / 172

Moving on to step 2:
When dividing 91 by 172, we get 0 with a remainder of 91.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 91 and we're left with 91.
Take the next digit (1) from the dividend and append it to 91, then repeat: 911 / 172

Let's proceed to step 3:
911 divided by 172 is 5 with a remainder of 51.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 860 from 911 and we're left with 51.
Take the next digit (0) from the dividend and append it to 51, then repeat: 510 / 172

Moving on to step 4:
172 can be fit into 510 2 times, resulting in a remainder of 166.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
The remainder is 166 after subtracting 344 from 510.
Bring next digit (8) of the dividend behind the 166 and repeat the process: 1668 / 172

Step 5:
172 goes into 1668 9 times with a remainder of 120.
The number 9 becomes the next digit in our result. 
Result so far: 529.0
If we take 1548 away from 1668, we end up with 120.
Append the next digit (4) from the dividend to 120 and continue with: 1204 / 172

Let's proceed to step 6:
The number 172 fits into 1204 7 times, leaving a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 5297.0
Deduct 1204 from 1204 and we're left with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 172

Step 7:
172 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 52970.0
If we take 0 away from 5, we end up with 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 172

Step 8:
The number 172 fits into 56 0 times, leaving a remainder of 56.
Use 0 as the next digit of our solution. 
Result so far: 529700.0
Deduct 0 from 56 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 9:
172 can be fit into 560 3 times, resulting in a remainder of 44.
The number 3 becomes the next digit in our result. 
Result so far: 529700.3
Deduct 516 from 560 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 10:
440 divided by 172 is 2 with a remainder of 96.
The next digit of our result is 2. 
Result so far: 529700.32
If we take 344 away from 440, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 11:
When dividing 960 by 172, we get 5 with a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 529700.325
Subtracting 860 from 960 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 12:
If we divide 1000 by 172, we get 5 and a remainder of 140.
Put 5 as the next digit of the answer. 
Result so far: 529700.3255
If we subtract 860 from 1000, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

After the division, we end up with 529700.3255 and a remainder of 0.0014.