Let's divide 7780 by 66
We want to divide 7780 by 66.

On to step 1:
The number 66 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
Deduct 0 from 7 and we're left with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 66

Moving on to step 2:
If we divide 77 by 66, we get 1 and a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 66 away from 77, we end up with 11.
Bring next digit (8) of the dividend behind the 11 and repeat the process: 118 / 66

Moving on to step 3:
When dividing 118 by 66, we get 1 with a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 66 from 118 to get 52.
Take the next digit (0) from the dividend and append it to 52, then repeat: 520 / 66

Going ahead to step 4:
When dividing 520 by 66, we get 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
Subtracting 462 from 520 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 5:
580 divided by 66 is 8 with a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 117.8
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 6:
If we divide 520 by 66, we get 7 and a remainder of 58.
The next digit of our result is 7. 
Result so far: 117.87
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 7:
66 can be fit into 580 8 times, resulting in a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 117.878
The remainder is 52 after subtracting 528 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 8:
66 goes into 520 7 times with a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 117.8787
Subtracting 462 from 520 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 9:
When dividing 580 by 66, we get 8 with a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 117.87878
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 10:
66 goes into 520 7 times with a remainder of 58.
The next digit of our result is 7. 
Result so far: 117.878787
Deduct 462 from 520 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 11:
The number 66 fits into 580 8 times, leaving a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 117.8787878
The remainder is 52 after subtracting 528 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 12:
66 goes into 520 7 times with a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 117.87878787
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 117.87878787, with a leftover of 5.8e-08.