We look at the division of 90303 by 45 
We're looking to find how many times 45 goes into 90303.

Let's proceed to step 1:
9 divided by 45 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 45

On to step 2:
45 goes into 90 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 90 from 90 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 45

Moving on to step 3:
45 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 20.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 45

Going ahead to step 4:
45 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 200.0
The remainder is 30 after subtracting 0 from 30.
Append the next digit (3) from the dividend to 30 and continue with: 303 / 45

Going ahead to step 5:
303 divided by 45 is 6 with a remainder of 33.
Record the quotient 6 as the next digit in the result. 
Result so far: 2006.0
If we subtract 270 from 303, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 6:
When dividing 330 by 45, we get 7 with a remainder of 15.
Write down 7 as next digit of the result. 
Result so far: 2006.7
Deduct 315 from 330 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
45 goes into 150 3 times with a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 2006.73
If we subtract 135 from 150, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 8:
45 goes into 150 3 times with a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 2006.733
Subtracting 135 from 150 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Our division results in 2006.733 with a remaining 0.0015.