786968 divided by 66 
The aim is to understand the frequency of 66 in 786968.

Step 1:
66 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 66

On to step 2:
The number 66 fits into 78 1 times, leaving a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 66 from 78 leaves us with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 66

On to step 3:
66 goes into 126 1 times with a remainder of 60.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 60 after subtracting 66 from 126.
Include the next digit (9) from the dividend after 60, then repeat: 609 / 66

On to step 4:
The number 66 fits into 609 9 times, leaving a remainder of 15.
Record the quotient 9 as the next digit in the result. 
Result so far: 119.0
If we take 594 away from 609, we end up with 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 66

On to step 5:
156 divided by 66 is 2 with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 1192.0
If we take 132 away from 156, we end up with 24.
Bring next digit (8) of the dividend behind the 24 and repeat the process: 248 / 66

Step 6:
66 can be fit into 248 3 times, resulting in a remainder of 50.
The next digit of our result is 3. 
Result so far: 11923.0
The remainder is 50 after subtracting 198 from 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
66 can be fit into 500 7 times, resulting in a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 11923.7
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 8:
When dividing 380 by 66, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 11923.75
Subtracting 330 from 380 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
The number 66 fits into 500 7 times, leaving a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 11923.757
If we take 462 away from 500, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 10:
If we divide 380 by 66, we get 5 and a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 11923.7575
If we take 330 away from 380, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 11:
When dividing 500 by 66, we get 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 11923.75757
If we subtract 462 from 500, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 12:
66 goes into 380 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 11923.757575
Subtracting 330 from 380 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 13:
500 divided by 66 is 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 11923.7575757
If we take 462 away from 500, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 14:
The number 66 fits into 380 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 11923.75757575
Subtracting 330 from 380 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 11923.75757575, with a leftover of 5e-08.