We look at the division of 145170 by 85 
We're looking to find how many times 85 goes into 145170.

On to step 1:
1 divided by 85 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 85

Advancing to step 2:
14 divided by 85 is 0 with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 14 leaves us with 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 85

Advancing to step 3:
145 divided by 85 is 1 with a remainder of 60.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 60 after subtracting 85 from 145.
Grab the next digit (1) from the dividend, add it to 60, then carry on: 601 / 85

Moving on to step 4:
85 goes into 601 7 times with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we take 595 away from 601, we end up with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 85

Let's proceed to step 5:
If we divide 67 by 85, we get 0 and a remainder of 67.
Write down 0 as next digit of the result. 
Result so far: 170.0
If we subtract 0 from 67, we get 67.
Take the next digit (0) from the dividend and append it to 67, then repeat: 670 / 85

Going ahead to step 6:
The number 85 fits into 670 7 times, leaving a remainder of 75.
The next digit of our result is 7. 
Result so far: 1707.0
Subtract 595 from 670 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 7:
85 can be fit into 750 8 times, resulting in a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 1707.8
Subtract 680 from 750 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 8:
85 goes into 700 8 times with a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 1707.88
If we subtract 680 from 700, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 1707.88 with a remainder of 0.02.