Let's divide 679719 by 66
The aim is to understand the frequency of 66 in 679719.

On to step 1:
6 divided by 66 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 66

Moving on to step 2:
66 can be fit into 67 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 66 away from 67, we end up with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 66

On to step 3:
When dividing 19 by 66, we get 0 with a remainder of 19.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 19 after subtracting 0 from 19.
Bring next digit (7) of the dividend behind the 19 and repeat the process: 197 / 66

Moving on to step 4:
When dividing 197 by 66, we get 2 with a remainder of 65.
Write down 2 as next digit of the result. 
Result so far: 102.0
If we take 132 away from 197, we end up with 65.
Fetch the next digit (1) from the dividend, attach it to 65 and continue: 651 / 66

On to step 5:
The number 66 fits into 651 9 times, leaving a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 1029.0
Deduct 594 from 651 and we're left with 57.
Fetch the next digit (9) from the dividend, attach it to 57 and continue: 579 / 66

Moving on to step 6:
66 can be fit into 579 8 times, resulting in a remainder of 51.
The next digit of our result is 8. 
Result so far: 10298.0
Subtract 528 from 579 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 7:
66 goes into 510 7 times with a remainder of 48.
Write down 7 as next digit of the result. 
Result so far: 10298.7
Deduct 462 from 510 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 8:
66 goes into 480 7 times with a remainder of 18.
The next digit of our result is 7. 
Result so far: 10298.77
If we take 462 away from 480, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 10298.77 with a balance of 0.018.