917503 ÷ 45 
We want to divide 917503 by 45.

On to step 1:
45 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 45

Step 2:
91 divided by 45 is 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 90 away from 91, we end up with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 45

Moving on to step 3:
The number 45 fits into 17 0 times, leaving a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
If we take 0 away from 17, we end up with 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 45

Going ahead to step 4:
45 goes into 175 3 times with a remainder of 40.
The next digit of our result is 3. 
Result so far: 203.0
Subtract 135 from 175 to get 40.
Fetch the next digit (0) from the dividend, attach it to 40 and continue: 400 / 45

Advancing to step 5:
45 goes into 400 8 times with a remainder of 40.
The next digit of our result is 8. 
Result so far: 2038.0
If we subtract 360 from 400, we get 40.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 45

Advancing to step 6:
The number 45 fits into 403 8 times, leaving a remainder of 43.
Put 8 as the next digit of the answer. 
Result so far: 20388.0
Subtracting 360 from 403 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 7:
When dividing 430 by 45, we get 9 with a remainder of 25.
The next digit of our result is 9. 
Result so far: 20388.9
If we subtract 405 from 430, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 8:
The number 45 fits into 250 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 20388.95
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 9:
45 goes into 250 5 times with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 20388.955
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 20388.955 with a remainder of 0.0025.