We're dividing 15935685 by 603 
We want to figure out the number of times 15935685 can be divided by 603.

Moving on to step 1:
603 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 603

On to step 2:
When dividing 15 by 603, we get 0 with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 603

Advancing to step 3:
If we divide 159 by 603, we get 0 and a remainder of 159.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 159 and we're left with 159.
Append the next digit (3) from the dividend to 159 and continue with: 1593 / 603

Going ahead to step 4:
The number 603 fits into 1593 2 times, leaving a remainder of 387.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 1206 from 1593 to get 387.
Take the next digit (5) from the dividend and append it to 387, then repeat: 3875 / 603

Moving on to step 5:
3875 divided by 603 is 6 with a remainder of 257.
Write down 6 as next digit of the result. 
Result so far: 26.0
The remainder is 257 after subtracting 3618 from 3875.
Fetch the next digit (6) from the dividend, attach it to 257 and continue: 2576 / 603

Let's proceed to step 6:
603 goes into 2576 4 times with a remainder of 164.
The number 4 becomes the next digit in our result. 
Result so far: 264.0
Subtracting 2412 from 2576 leaves us with 164.
Fetch the next digit (8) from the dividend, attach it to 164 and continue: 1648 / 603

Let's proceed to step 7:
When dividing 1648 by 603, we get 2 with a remainder of 442.
Write down 2 as next digit of the result. 
Result so far: 2642.0
Subtract 1206 from 1648 to get 442.
Bring next digit (5) of the dividend behind the 442 and repeat the process: 4425 / 603

Moving on to step 8:
When dividing 4425 by 603, we get 7 with a remainder of 204.
The next digit of our result is 7. 
Result so far: 26427.0
If we subtract 4221 from 4425, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Advancing to step 9:
2040 divided by 603 is 3 with a remainder of 231.
Write down 3 as next digit of the result. 
Result so far: 26427.3
The remainder is 231 after subtracting 1809 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

On to step 10:
When dividing 2310 by 603, we get 3 with a remainder of 501.
Put 3 as the next digit of the answer. 
Result so far: 26427.33
Subtract 1809 from 2310 to get 501.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5010, and continue the process.

The quotient of the division is 26427.33, and the remainder is 0.501.