172310 divided by 90 
Let's see how many times 90 fits into 172310.

Let's proceed to step 1:
The number 90 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 90

Step 2:
The number 90 fits into 17 0 times, leaving a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 90

On to step 3:
When dividing 172 by 90, we get 1 with a remainder of 82.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 90 from 172 and we're left with 82.
Fetch the next digit (3) from the dividend, attach it to 82 and continue: 823 / 90

Advancing to step 4:
When dividing 823 by 90, we get 9 with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 19.0
Subtracting 810 from 823 leaves us with 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 90

On to step 5:
131 divided by 90 is 1 with a remainder of 41.
Put 1 as the next digit of the answer. 
Result so far: 191.0
If we take 90 away from 131, we end up with 41.
Include the next digit (0) from the dividend after 41, then repeat: 410 / 90

Advancing to step 6:
The number 90 fits into 410 4 times, leaving a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 1914.0
Deduct 360 from 410 and we're left 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.

Step 7:
If we divide 500 by 90, we get 5 and a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 1914.5
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
90 can be fit into 500 5 times, resulting in a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 1914.55
Deduct 450 from 500 and we're left 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 quotient of the division is 1914.55, and the remainder is 0.05.