663951 divided by 66 
Our goal is to divide 663951 by 66.

On to step 1:
66 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 66

Let's proceed to step 2:
When dividing 66 by 66, we get 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 66 from 66, we get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 66

Step 3:
3 divided by 66 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 3 to get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 66

Step 4:
66 goes into 39 0 times with a remainder of 39.
The next digit of our result is 0. 
Result so far: 100.0
The remainder is 39 after subtracting 0 from 39.
Append the next digit (5) from the dividend to 39 and continue with: 395 / 66

Advancing to step 5:
If we divide 395 by 66, we get 5 and a remainder of 65.
The next digit of our result is 5. 
Result so far: 1005.0
The remainder is 65 after subtracting 330 from 395.
Include the next digit (1) from the dividend after 65, then repeat: 651 / 66

Going ahead to step 6:
If we divide 651 by 66, we get 9 and a remainder of 57.
The number 9 becomes the next digit in our result. 
Result so far: 10059.0
Subtract 594 from 651 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 7:
570 divided by 66 is 8 with a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 10059.8
Subtracting 528 from 570 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 8:
420 divided by 66 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 10059.86
Subtract 396 from 420 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
66 can be fit into 240 3 times, resulting in a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 10059.863
If we take 198 away from 240, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 10:
66 can be fit into 420 6 times, resulting in a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 10059.8636
If we subtract 396 from 420, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
240 divided by 66 is 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 10059.86363
The remainder is 42 after subtracting 198 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 12:
66 goes into 420 6 times with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 10059.863636
If we subtract 396 from 420, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 13:
66 goes into 240 3 times with a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 10059.8636363
Subtract 198 from 240 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 14:
The number 66 fits into 420 6 times, leaving a remainder of 24.
The next digit of our result is 6. 
Result so far: 10059.86363636
The remainder is 24 after subtracting 396 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Our division results in 10059.86363636 with a remaining 2.4e-08.