We look at the division of 76564651 by 603 
Let's see how many times 603 fits into 76564651.

Going ahead to step 1:
The number 603 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 603

Moving on to step 2:
603 goes into 76 0 times with a remainder of 76.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 76, we get 76.
Append the next digit (5) from the dividend to 76 and continue with: 765 / 603

On to step 3:
603 can be fit into 765 1 times, resulting in a remainder of 162.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 603 away from 765, we end up with 162.
Fetch the next digit (6) from the dividend, attach it to 162 and continue: 1626 / 603

Going ahead to step 4:
603 can be fit into 1626 2 times, resulting in a remainder of 420.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we subtract 1206 from 1626, we get 420.
Take the next digit (4) from the dividend and append it to 420, then repeat: 4204 / 603

Let's proceed to step 5:
603 goes into 4204 6 times with a remainder of 586.
Write down 6 as next digit of the result. 
Result so far: 126.0
The remainder is 586 after subtracting 3618 from 4204.
Append the next digit (6) from the dividend to 586 and continue with: 5866 / 603

Going ahead to step 6:
If we divide 5866 by 603, we get 9 and a remainder of 439.
Use 9 as the next digit of our solution. 
Result so far: 1269.0
Subtracting 5427 from 5866 leaves us with 439.
Take the next digit (5) from the dividend and append it to 439, then repeat: 4395 / 603

Going ahead to step 7:
603 can be fit into 4395 7 times, resulting in a remainder of 174.
Put 7 as the next digit of the answer. 
Result so far: 12697.0
Subtract 4221 from 4395 to get 174.
Include the next digit (1) from the dividend after 174, then repeat: 1741 / 603

Let's proceed to step 8:
If we divide 1741 by 603, we get 2 and a remainder of 535.
The next digit of our result is 2. 
Result so far: 126972.0
The remainder is 535 after subtracting 1206 from 1741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Moving on to step 9:
603 can be fit into 5350 8 times, resulting in a remainder of 526.
Put 8 as the next digit of the answer. 
Result so far: 126972.8
If we take 4824 away from 5350, we end up with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

Let's proceed to step 10:
603 can be fit into 5260 8 times, resulting in a remainder of 436.
The number 8 becomes the next digit in our result. 
Result so far: 126972.88
Subtracting 4824 from 5260 leaves us with 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

The final outcome is 126972.88, with a leftover of 0.436.