172309 divided by 91 
Our goal is to divide 172309 by 91.

Moving on to step 1:
91 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 91

Step 2:
When dividing 17 by 91, we get 0 with a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Fetch the next digit (2) from the dividend, attach it to 17 and continue: 172 / 91

Moving on to step 3:
If we divide 172 by 91, we get 1 and a remainder of 81.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 81 after subtracting 91 from 172.
Fetch the next digit (3) from the dividend, attach it to 81 and continue: 813 / 91

Going ahead to step 4:
The number 91 fits into 813 8 times, leaving a remainder of 85.
Write down 8 as next digit of the result. 
Result so far: 18.0
The remainder is 85 after subtracting 728 from 813.
Grab the next digit (0) from the dividend, add it to 85, then carry on: 850 / 91

Step 5:
91 can be fit into 850 9 times, resulting in a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 189.0
Deduct 819 from 850 and we're left with 31.
Take the next digit (9) from the dividend and append it to 31, then repeat: 319 / 91

Let's proceed to step 6:
91 can be fit into 319 3 times, resulting in a remainder of 46.
The next digit of our result is 3. 
Result so far: 1893.0
Subtracting 273 from 319 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 7:
91 goes into 460 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 1893.5
Subtract 455 from 460 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
If we divide 50 by 91, we get 0 and a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 1893.5
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
When dividing 500 by 91, we get 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 1893.505
Deduct 455 from 500 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 10:
When dividing 450 by 91, we get 4 with a remainder of 86.
Put 4 as the next digit of the answer. 
Result so far: 1893.5054
Subtracting 364 from 450 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 11:
91 can be fit into 860 9 times, resulting in a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 1893.50549
If we take 819 away from 860, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 12:
91 goes into 410 4 times with a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 1893.505494
If we take 364 away from 410, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 13:
91 goes into 460 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 1893.5054945
The remainder is 5 after subtracting 455 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 14:
When dividing 50 by 91, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 1893.5054945
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 1893.5054945 with a remainder of 5e-08.