We're dividing 602403 by 30 
We're looking to find how many times 30 goes into 602403.

Let's proceed to step 1:
30 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 30

Moving on to step 2:
30 can be fit into 60 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 60 from 60, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 30

Step 3:
2 divided by 30 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtract 0 from 2 to get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 30

Moving on to step 4:
If we divide 24 by 30, we get 0 and a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 200.0
If we take 0 away from 24, we end up with 24.
Grab the next digit (0) from the dividend, add it to 24, then carry on: 240 / 30

Advancing to step 5:
30 can be fit into 240 8 times, resulting in a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 2008.0
If we take 240 away from 240, we end up with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 30

Going ahead to step 6:
When dividing 3 by 30, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 20080.0
If we subtract 0 from 3, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
30 divided by 30 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 20080.1
Subtracting 30 from 30 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 30, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 20080.1
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
If we divide 0 by 30, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 20080.1
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 20080.1 and a remainder of 0.0.