We look at the division of 810135 by 45 
Our goal is to divide 810135 by 45.

Moving on to step 1:
The number 45 fits into 8 0 times, leaving 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.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 45

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
The remainder is 36 after subtracting 45 from 81.
Bring next digit (0) of the dividend behind the 36 and repeat the process: 360 / 45

Let's proceed to step 3:
45 can be fit into 360 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we take 360 away from 360, we end up with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 45

Let's proceed to step 4:
45 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 180.0
If we take 0 away from 1, we end up with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 45

On to step 5:
45 goes into 13 0 times with a remainder of 13.
The next digit of our result is 0. 
Result so far: 1800.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (5) from the dividend, add it to 13, then carry on: 135 / 45

Step 6:
If we divide 135 by 45, we get 3 and a remainder of 0.
The next digit of our result is 3. 
Result so far: 18003.0
Subtract 135 from 135 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
The number 45 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 18003.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
When dividing 0 by 45, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 18003.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 18003.0 with a remaining 0.0.