We look at the division of 860537 by 45 
We're looking to find how many times 45 goes into 860537.

On to step 1:
When dividing 8 by 45, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 45

On to step 2:
If we divide 86 by 45, we get 1 and a remainder of 41.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 45 from 86 to get 41.
Bring next digit (0) of the dividend behind the 41 and repeat the process: 410 / 45

On to step 3:
If we divide 410 by 45, we get 9 and a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we subtract 405 from 410, we get 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 45

Moving on to step 4:
55 divided by 45 is 1 with a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 191.0
Subtract 45 from 55 to get 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 45

Let's proceed to step 5:
45 can be fit into 103 2 times, resulting in a remainder of 13.
Write down 2 as next digit of the result. 
Result so far: 1912.0
Deduct 90 from 103 and we're left with 13.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 45

Going ahead to step 6:
137 divided by 45 is 3 with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 19123.0
If we subtract 135 from 137, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
45 can be fit into 20 0 times, resulting in a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 19123.0
Subtract 0 from 20 to 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.

Going ahead to step 8:
When dividing 200 by 45, we get 4 with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 19123.04
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
200 divided by 45 is 4 with a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 19123.044
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 19123.044 and a remainder of 0.002.