We divide 423203 by 45
We want to figure out the number of times 423203 can be divided by 45.

Step 1:
45 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 45

Going ahead to step 2:
If we divide 42 by 45, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Fetch the next digit (3) from the dividend, attach it to 42 and continue: 423 / 45

On to step 3:
45 goes into 423 9 times with a remainder of 18.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 405 from 423, we get 18.
Include the next digit (2) from the dividend after 18, then repeat: 182 / 45

Going ahead to step 4:
182 divided by 45 is 4 with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 94.0
Subtract 180 from 182 to get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 45

Advancing to step 5:
20 divided by 45 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 940.0
Deduct 0 from 20 and we're left with 20.
Include the next digit (3) from the dividend after 20, then repeat: 203 / 45

Let's proceed to step 6:
If we divide 203 by 45, we get 4 and a remainder of 23.
Put 4 as the next digit of the answer. 
Result so far: 9404.0
Deduct 180 from 203 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
When dividing 230 by 45, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 9404.5
Deduct 225 from 230 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
45 can be fit into 50 1 times, resulting in a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 9404.51
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
50 divided by 45 is 1 with a remainder of 5.
The next digit of our result is 1. 
Result so far: 9404.511
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 9404.511 with a remaining 0.0005.