Let's divide 423602 by 18
We want to figure out the number of times 423602 can be divided by 18.

Moving on to step 1:
18 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 18

Going ahead to step 2:
18 goes into 42 2 times with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 6 after subtracting 36 from 42.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 18

On to step 3:
63 divided by 18 is 3 with a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we subtract 54 from 63, we get 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 18

Let's proceed to step 4:
If we divide 96 by 18, we get 5 and a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 235.0
Subtracting 90 from 96 leaves us with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 18

Moving on to step 5:
18 goes into 60 3 times with a remainder of 6.
The next digit of our result is 3. 
Result so far: 2353.0
Subtracting 54 from 60 leaves us with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 18

Step 6:
If we divide 62 by 18, we get 3 and a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 23533.0
Subtract 54 from 62 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
80 divided by 18 is 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 23533.4
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 8:
18 goes into 80 4 times with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 23533.44
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 23533.44 with a balance of 0.008.