Let's divide 603680 by 15
Our goal is to divide 603680 by 15.

Step 1:
6 divided by 15 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 15

Advancing to step 2:
The number 15 fits into 60 4 times, leaving a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 60 from 60, we get 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 15

On to step 3:
The number 15 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 15

Moving on to step 4:
36 divided by 15 is 2 with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 402.0
Subtracting 30 from 36 leaves us with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 15

Step 5:
15 goes into 68 4 times with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 4024.0
If we subtract 60 from 68, we get 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 15

Moving on to step 6:
The number 15 fits into 80 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 40245.0
If we take 75 away from 80, we end up 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.

Let's proceed to step 7:
50 divided by 15 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 40245.3
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.

Moving on to step 8:
15 goes into 50 3 times with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 40245.33
If we subtract 45 from 50, we 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.

The final outcome is 40245.33, with a leftover of 0.005.