We look at the division of 815853 by 45 
We want to divide 815853 by 45.

Advancing to step 1:
The number 45 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 45

Moving on to step 2:
81 divided by 45 is 1 with a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 45 from 81 leaves us with 36.
Grab the next digit (5) from the dividend, add it to 36, then carry on: 365 / 45

Advancing to step 3:
If we divide 365 by 45, we get 8 and a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtracting 360 from 365 leaves us with 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 45

Let's proceed to step 4:
The number 45 fits into 58 1 times, leaving a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 181.0
If we subtract 45 from 58, we get 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 45

Moving on to step 5:
If we divide 135 by 45, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 1813.0
The remainder is 0 after subtracting 135 from 135.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 45

Moving on to step 6:
When dividing 3 by 45, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 18130.0
Subtracting 0 from 3 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
30 divided by 45 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 18130.0
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
If we divide 300 by 45, we get 6 and a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 18130.06
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
300 divided by 45 is 6 with a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 18130.066
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 18130.066 with a remainder of 0.003.