26694280 ÷ 66 
The aim is to understand the frequency of 66 in 26694280.

Advancing to step 1:
The number 66 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 66

Step 2:
66 can be fit into 26 0 times, resulting in a remainder of 26.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 26 leaves us with 26.
Append the next digit (6) from the dividend to 26 and continue with: 266 / 66

Step 3:
66 goes into 266 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 264 from 266 leaves us with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 66

Step 4:
When dividing 29 by 66, we get 0 with a remainder of 29.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
Deduct 0 from 29 and we're left with 29.
Fetch the next digit (4) from the dividend, attach it to 29 and continue: 294 / 66

Advancing to step 5:
66 can be fit into 294 4 times, resulting in a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 404.0
If we subtract 264 from 294, we get 30.
Append the next digit (2) from the dividend to 30 and continue with: 302 / 66

On to step 6:
66 can be fit into 302 4 times, resulting in a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 4044.0
Subtract 264 from 302 to get 38.
Fetch the next digit (8) from the dividend, attach it to 38 and continue: 388 / 66

Step 7:
If we divide 388 by 66, we get 5 and a remainder of 58.
Write down 5 as next digit of the result. 
Result so far: 40445.0
The remainder is 58 after subtracting 330 from 388.
Grab the next digit (0) from the dividend, add it to 58, then carry on: 580 / 66

Step 8:
The number 66 fits into 580 8 times, leaving a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 404458.0
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 9:
If we divide 520 by 66, we get 7 and a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 404458.7
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.

Moving on to step 10:
The number 66 fits into 580 8 times, leaving a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 404458.78
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.

Let's proceed to step 11:
66 goes into 520 7 times with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 404458.787
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.

Moving on to step 12:
66 can be fit into 580 8 times, resulting in a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 404458.7878
Deduct 528 from 580 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 13:
If we divide 520 by 66, we get 7 and a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 404458.78787
The remainder is 58 after subtracting 462 from 520.
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 14:
66 goes into 580 8 times with a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 404458.787878
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.

Going ahead to step 15:
66 can be fit into 520 7 times, resulting in a remainder of 58.
The next digit of our result is 7. 
Result so far: 404458.7878787
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.

Let's proceed to step 16:
66 can be fit into 580 8 times, resulting in a remainder of 52.
The next digit of our result is 8. 
Result so far: 404458.78787878
If we take 528 away from 580, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final result is 404458.78787878 with a remainder of 5.2e-08.