We divide 768823 by 66
The aim is to understand the frequency of 66 in 768823.

Moving on to step 1:
When dividing 7 by 66, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 66

Advancing to step 2:
The number 66 fits into 76 1 times, leaving a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 10 after subtracting 66 from 76.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 66

On to step 3:
The number 66 fits into 108 1 times, leaving a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we take 66 away from 108, we end up with 42.
Take the next digit (8) from the dividend and append it to 42, then repeat: 428 / 66

Moving on to step 4:
428 divided by 66 is 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 116.0
Deduct 396 from 428 and we're left with 32.
Bring next digit (2) of the dividend behind the 32 and repeat the process: 322 / 66

Advancing to step 5:
322 divided by 66 is 4 with a remainder of 58.
The next digit of our result is 4. 
Result so far: 1164.0
Deduct 264 from 322 and we're left with 58.
Include the next digit (3) from the dividend after 58, then repeat: 583 / 66

Advancing to step 6:
66 can be fit into 583 8 times, resulting in a remainder of 55.
Write down 8 as next digit of the result. 
Result so far: 11648.0
If we subtract 528 from 583, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 7:
66 can be fit into 550 8 times, resulting in a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 11648.8
Deduct 528 from 550 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
66 goes into 220 3 times with a remainder of 22.
Write down 3 as next digit of the result. 
Result so far: 11648.83
Deduct 198 from 220 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
66 can be fit into 220 3 times, resulting in a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 11648.833
Deduct 198 from 220 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The quotient of the division is 11648.833, and the remainder is 0.0022.