We divide 510651 by 66
We want to figure out the number of times 510651 can be divided by 66.

Going ahead to step 1:
5 divided by 66 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 66

On to step 2:
The number 66 fits into 51 0 times, leaving a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 66

Step 3:
66 can be fit into 510 7 times, resulting in a remainder of 48.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 462 from 510, we get 48.
Fetch the next digit (6) from the dividend, attach it to 48 and continue: 486 / 66

Advancing to step 4:
The number 66 fits into 486 7 times, leaving a remainder of 24.
The next digit of our result is 7. 
Result so far: 77.0
Subtracting 462 from 486 leaves us with 24.
Append the next digit (5) from the dividend to 24 and continue with: 245 / 66

Step 5:
If we divide 245 by 66, we get 3 and a remainder of 47.
The next digit of our result is 3. 
Result so far: 773.0
The remainder is 47 after subtracting 198 from 245.
Grab the next digit (1) from the dividend, add it to 47, then carry on: 471 / 66

Let's proceed to step 6:
If we divide 471 by 66, we get 7 and a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 7737.0
Subtracting 462 from 471 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
If we divide 90 by 66, we get 1 and a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 7737.1
Subtract 66 from 90 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.

Going ahead to step 8:
If we divide 240 by 66, we get 3 and a remainder of 42.
The next digit of our result is 3. 
Result so far: 7737.13
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.

Advancing to step 9:
66 can be fit into 420 6 times, resulting in a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 7737.136
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.

Moving on to step 10:
66 can be fit into 240 3 times, resulting in a remainder of 42.
The next digit of our result is 3. 
Result so far: 7737.1363
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.

On to step 11:
420 divided by 66 is 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 7737.13636
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.

Advancing to step 12:
When dividing 240 by 66, we get 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 7737.136363
If we subtract 198 from 240, we 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.

Step 13:
When dividing 420 by 66, we get 6 with a remainder of 24.
The next digit of our result is 6. 
Result so far: 7737.1363636
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.

Step 14:
If we divide 240 by 66, we get 3 and a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 7737.13636363
Subtracting 198 from 240 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.

The quotient of the division is 7737.13636363, and the remainder is 4.2e-08.