We're dividing 645055 by 66 
Our goal is to divide 645055 by 66.

Moving on to step 1:
The number 66 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 66

On to step 2:
The number 66 fits into 64 0 times, leaving a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Bring next digit (5) of the dividend behind the 64 and repeat the process: 645 / 66

Advancing to step 3:
66 goes into 645 9 times with a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 594 from 645, we get 51.
Fetch the next digit (0) from the dividend, attach it to 51 and continue: 510 / 66

On to step 4:
66 can be fit into 510 7 times, resulting in a remainder of 48.
The next digit of our result is 7. 
Result so far: 97.0
Deduct 462 from 510 and we're left with 48.
Bring next digit (5) of the dividend behind the 48 and repeat the process: 485 / 66

Moving on to step 5:
66 goes into 485 7 times with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 977.0
Deduct 462 from 485 and we're left with 23.
Append the next digit (5) from the dividend to 23 and continue with: 235 / 66

Advancing to step 6:
The number 66 fits into 235 3 times, leaving a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 9773.0
Subtracting 198 from 235 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 7:
When dividing 370 by 66, we get 5 with a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 9773.5
If we take 330 away from 370, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
66 can be fit into 400 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 9773.56
If we subtract 396 from 400, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
66 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 9773.56
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
If we divide 400 by 66, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 9773.5606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
If we divide 40 by 66, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 9773.5606
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 12:
When dividing 400 by 66, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 9773.560606
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
The number 66 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 9773.560606
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 14:
The number 66 fits into 400 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 9773.56060606
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 9773.56060606 with a remainder of 4e-09.