We're dividing 901485 by 45 
Let's see how many times 45 fits into 901485.

Let's proceed to step 1:
45 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 45

Going ahead to step 2:
45 can be fit into 90 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 2.0
If we take 90 away from 90, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 45

Advancing to step 3:
1 divided by 45 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 20.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 45

Let's proceed to step 4:
The number 45 fits into 14 0 times, leaving a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 200.0
If we subtract 0 from 14, we get 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 45

Moving on to step 5:
The number 45 fits into 148 3 times, leaving a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 2003.0
If we take 135 away from 148, we end up with 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 45

Let's proceed to step 6:
45 goes into 135 3 times with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 20033.0
If we subtract 135 from 135, we 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.

Advancing to step 7:
When dividing 0 by 45, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 20033.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
45 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 20033.0
If we subtract 0 from 0, we 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.

The final result is 20033.0 with a remainder of 0.0.