We divide 603562 by 15
Let's see how many times 15 fits into 603562.

Moving on to step 1:
15 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 15

Advancing to step 2:
15 can be fit into 60 4 times, resulting in a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 0 after subtracting 60 from 60.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 15

Step 3:
The number 15 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 40.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 15

Advancing to step 4:
15 can be fit into 35 2 times, resulting in a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 402.0
The remainder is 5 after subtracting 30 from 35.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 15

Going ahead to step 5:
If we divide 56 by 15, we get 3 and a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 4023.0
If we subtract 45 from 56, we get 11.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 15

Let's proceed to step 6:
15 can be fit into 112 7 times, resulting in a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 40237.0
Subtract 105 from 112 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
The number 15 fits into 70 4 times, leaving a remainder of 10.
The next digit of our result is 4. 
Result so far: 40237.4
Subtracting 60 from 70 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 40237.46
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
100 divided by 15 is 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 40237.466
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 40237.466, with a leftover of 0.001.