Let's divide 603042 by 15
Our goal is to divide 603042 by 15.

On to step 1:
When dividing 6 by 15, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 15

Moving on to step 2:
When dividing 60 by 15, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 60 from 60 leaves us with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 15

Moving on to step 3:
The number 15 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 40.0
Subtract 0 from 3 to get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 15

Going ahead to step 4:
When dividing 30 by 15, we get 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 402.0
If we take 30 away from 30, we end up with 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 15

Advancing to step 5:
The number 15 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 4020.0
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 / 15

Going ahead to step 6:
The number 15 fits into 42 2 times, leaving a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 40202.0
The remainder is 12 after subtracting 30 from 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 7:
If we divide 120 by 15, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 40202.8
Subtract 120 from 120 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
0 divided by 15 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 40202.8
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.

Going ahead to step 9:
If we divide 0 by 15, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 40202.8
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.

In conclusion, the division gives 40202.8 with a balance of 0.0.