902578 divided by 45 
We're looking to find how many times 45 goes into 902578.

Let's proceed to step 1:
45 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 45

Going ahead to step 2:
When dividing 90 by 45, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 90 from 90 leaves us with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 45

On to step 3:
The number 45 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 20.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 45

On to step 4:
If we divide 25 by 45, we get 0 and a remainder of 25.
The next digit of our result is 0. 
Result so far: 200.0
If we take 0 away from 25, we end up with 25.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 45

On to step 5:
257 divided by 45 is 5 with a remainder of 32.
Put 5 as the next digit of the answer. 
Result so far: 2005.0
If we subtract 225 from 257, we get 32.
Bring next digit (8) of the dividend behind the 32 and repeat the process: 328 / 45

Advancing to step 6:
When dividing 328 by 45, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 20057.0
Deduct 315 from 328 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 7:
45 can be fit into 130 2 times, resulting in a remainder of 40.
The next digit of our result is 2. 
Result so far: 20057.2
Subtracting 90 from 130 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
45 goes into 400 8 times with a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 20057.28
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
The number 45 fits into 400 8 times, leaving a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 20057.288
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 20057.288, with a leftover of 0.004.