We're dividing 89170 by 45 
Let's see how many times 45 fits into 89170.

Let's proceed to step 1:
45 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 45

On to step 2:
89 divided by 45 is 1 with a remainder of 44.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 45 from 89 to get 44.
Take the next digit (1) from the dividend and append it to 44, then repeat: 441 / 45

Moving on to step 3:
When dividing 441 by 45, we get 9 with a remainder of 36.
Write down 9 as next digit of the result. 
Result so far: 19.0
Subtract 405 from 441 to get 36.
Take the next digit (7) from the dividend and append it to 36, then repeat: 367 / 45

Moving on to step 4:
45 can be fit into 367 8 times, resulting in a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 198.0
If we take 360 away from 367, we end up with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 45

Going ahead to step 5:
If we divide 70 by 45, we get 1 and a remainder of 25.
The next digit of our result is 1. 
Result so far: 1981.0
Deduct 45 from 70 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 6:
The number 45 fits into 250 5 times, leaving a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 1981.5
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 7:
The number 45 fits into 250 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 1981.55
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 1981.55 with a remaining 0.025.