Let's divide 172160 by 45
We're looking to find how many times 45 goes into 172160.

On to step 1:
45 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 45

Let's proceed to step 2:
45 goes into 17 0 times 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.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 45

Going ahead to step 3:
The number 45 fits into 172 3 times, leaving a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 135 from 172 leaves us with 37.
Bring next digit (1) of the dividend behind the 37 and repeat the process: 371 / 45

Step 4:
If we divide 371 by 45, we get 8 and a remainder of 11.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Subtract 360 from 371 to get 11.
Fetch the next digit (6) from the dividend, attach it to 11 and continue: 116 / 45

Step 5:
If we divide 116 by 45, we get 2 and a remainder of 26.
The next digit of our result is 2. 
Result so far: 382.0
Subtracting 90 from 116 leaves us with 26.
Include the next digit (0) from the dividend after 26, then repeat: 260 / 45

Advancing to step 6:
When dividing 260 by 45, we get 5 with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 3825.0
Subtract 225 from 260 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 7:
45 goes into 350 7 times with a remainder of 35.
The number 7 becomes the next digit in our result. 
Result so far: 3825.7
If we subtract 315 from 350, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 8:
45 goes into 350 7 times with a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 3825.77
The remainder is 35 after subtracting 315 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Our division results in 3825.77 with a remaining 0.035.