We look at the division of 39365803 by 603 
We're looking to find how many times 603 goes into 39365803.

Advancing to step 1:
The number 603 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 603

Going ahead to step 2:
603 can be fit into 39 0 times, resulting in a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 603

Step 3:
When dividing 393 by 603, we get 0 with a remainder of 393.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 393 and we're left with 393.
Append the next digit (6) from the dividend to 393 and continue with: 3936 / 603

On to step 4:
3936 divided by 603 is 6 with a remainder of 318.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 3618 from 3936, we get 318.
Bring next digit (5) of the dividend behind the 318 and repeat the process: 3185 / 603

Moving on to step 5:
If we divide 3185 by 603, we get 5 and a remainder of 170.
Use 5 as the next digit of our solution. 
Result so far: 65.0
If we take 3015 away from 3185, we end up with 170.
Bring next digit (8) of the dividend behind the 170 and repeat the process: 1708 / 603

Moving on to step 6:
If we divide 1708 by 603, we get 2 and a remainder of 502.
Use 2 as the next digit of our solution. 
Result so far: 652.0
If we subtract 1206 from 1708, we get 502.
Grab the next digit (0) from the dividend, add it to 502, then carry on: 5020 / 603

Moving on to step 7:
5020 divided by 603 is 8 with a remainder of 196.
Record the quotient 8 as the next digit in the result. 
Result so far: 6528.0
If we subtract 4824 from 5020, we get 196.
Bring next digit (3) of the dividend behind the 196 and repeat the process: 1963 / 603

Step 8:
603 can be fit into 1963 3 times, resulting in a remainder of 154.
Use 3 as the next digit of our solution. 
Result so far: 65283.0
The remainder is 154 after subtracting 1809 from 1963.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Moving on to step 9:
The number 603 fits into 1540 2 times, leaving a remainder of 334.
Record the quotient 2 as the next digit in the result. 
Result so far: 65283.2
Subtract 1206 from 1540 to get 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

On to step 10:
If we divide 3340 by 603, we get 5 and a remainder of 325.
Record the quotient 5 as the next digit in the result. 
Result so far: 65283.25
Subtracting 3015 from 3340 leaves us with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 11:
603 can be fit into 3250 5 times, resulting in a remainder of 235.
Record the quotient 5 as the next digit in the result. 
Result so far: 65283.255
The remainder is 235 after subtracting 3015 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

The final result is 65283.255 with a remainder of 0.0235.