64233835 divided by 603 
Our goal is to divide 64233835 by 603.

Step 1:
603 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 603

Step 2:
603 can be fit into 64 0 times, resulting in a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Fetch the next digit (2) from the dividend, attach it to 64 and continue: 642 / 603

Advancing to step 3:
When dividing 642 by 603, we get 1 with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 603 from 642 leaves us with 39.
Bring next digit (3) of the dividend behind the 39 and repeat the process: 393 / 603

Moving on to step 4:
603 goes into 393 0 times with a remainder of 393.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 393 after subtracting 0 from 393.
Fetch the next digit (3) from the dividend, attach it to 393 and continue: 3933 / 603

Step 5:
The number 603 fits into 3933 6 times, leaving a remainder of 315.
Write down 6 as next digit of the result. 
Result so far: 106.0
If we take 3618 away from 3933, we end up with 315.
Include the next digit (8) from the dividend after 315, then repeat: 3158 / 603

Going ahead to step 6:
603 can be fit into 3158 5 times, resulting in a remainder of 143.
Put 5 as the next digit of the answer. 
Result so far: 1065.0
Deduct 3015 from 3158 and we're left with 143.
Include the next digit (3) from the dividend after 143, then repeat: 1433 / 603

Advancing to step 7:
The number 603 fits into 1433 2 times, leaving a remainder of 227.
Record the quotient 2 as the next digit in the result. 
Result so far: 10652.0
Deduct 1206 from 1433 and we're left with 227.
Bring next digit (5) of the dividend behind the 227 and repeat the process: 2275 / 603

Step 8:
603 goes into 2275 3 times with a remainder of 466.
Put 3 as the next digit of the answer. 
Result so far: 106523.0
The remainder is 466 after subtracting 1809 from 2275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Advancing to step 9:
4660 divided by 603 is 7 with a remainder of 439.
Write down 7 as next digit of the result. 
Result so far: 106523.7
Subtracting 4221 from 4660 leaves us with 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Moving on to step 10:
603 goes into 4390 7 times with a remainder of 169.
The next digit of our result is 7. 
Result so far: 106523.77
Subtracting 4221 from 4390 leaves us with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

After the division, we end up with 106523.77 and a remainder of 0.169.