We're dividing 645757 by 66 
We want to figure out the number of times 645757 can be divided by 66.

On to step 1:
66 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 66

Let's proceed to step 2:
66 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
Deduct 0 from 64 and we're left with 64.
Include the next digit (5) from the dividend after 64, then repeat: 645 / 66

On to step 3:
When dividing 645 by 66, we get 9 with a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 594 away from 645, we end up with 51.
Include the next digit (7) from the dividend after 51, then repeat: 517 / 66

On to step 4:
When dividing 517 by 66, we get 7 with a remainder of 55.
Use 7 as the next digit of our solution. 
Result so far: 97.0
The remainder is 55 after subtracting 462 from 517.
Include the next digit (5) from the dividend after 55, then repeat: 555 / 66

Moving on to step 5:
The number 66 fits into 555 8 times, leaving a remainder of 27.
Use 8 as the next digit of our solution. 
Result so far: 978.0
The remainder is 27 after subtracting 528 from 555.
Bring next digit (7) of the dividend behind the 27 and repeat the process: 277 / 66

Let's proceed to step 6:
When dividing 277 by 66, we get 4 with a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 9784.0
Subtracting 264 from 277 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 7:
The number 66 fits into 130 1 times, leaving a remainder of 64.
Put 1 as the next digit of the answer. 
Result so far: 9784.1
If we subtract 66 from 130, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 8:
66 goes into 640 9 times with a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 9784.19
Subtracting 594 from 640 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 9:
If we divide 460 by 66, we get 6 and a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 9784.196
Deduct 396 from 460 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 10:
The number 66 fits into 640 9 times, leaving a remainder of 46.
Record the quotient 9 as the next digit in the result. 
Result so far: 9784.1969
Subtracting 594 from 640 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 11:
If we divide 460 by 66, we get 6 and a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 9784.19696
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 12:
The number 66 fits into 640 9 times, leaving a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 9784.196969
Deduct 594 from 640 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 13:
When dividing 460 by 66, we get 6 with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 9784.1969696
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 14:
66 can be fit into 640 9 times, resulting in a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 9784.19696969
Deduct 594 from 640 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final outcome is 9784.19696969, with a leftover of 4.6e-08.