99666676 ÷ 26 
The aim is to understand the frequency of 26 in 99666676.

Moving on to step 1:
If we divide 9 by 26, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 26

Let's proceed to step 2:
26 goes into 99 3 times with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 78 from 99 leaves us with 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 26

Advancing to step 3:
When dividing 216 by 26, we get 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we subtract 208 from 216, we get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 26

Let's proceed to step 4:
26 goes into 86 3 times with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 383.0
If we subtract 78 from 86, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 26

Let's proceed to step 5:
86 divided by 26 is 3 with a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 3833.0
If we take 78 away from 86, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 26

On to step 6:
26 can be fit into 86 3 times, resulting in a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 38333.0
Deduct 78 from 86 and we're left with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 26

Advancing to step 7:
26 can be fit into 87 3 times, resulting in a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 383333.0
If we take 78 away from 87, we end up with 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 26

On to step 8:
96 divided by 26 is 3 with a remainder of 18.
Record the quotient 3 as the next digit in the result. 
Result so far: 3833333.0
If we subtract 78 from 96, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
180 divided by 26 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 3833333.6
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
26 can be fit into 240 9 times, resulting in a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 3833333.69
If we subtract 234 from 240, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
26 can be fit into 60 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 3833333.692
If we take 52 away from 60, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
26 goes into 80 3 times with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 3833333.6923
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 13:
26 can be fit into 20 0 times, resulting in a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 3833333.6923
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 14:
26 goes into 200 7 times with a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 3833333.692307
The remainder is 18 after subtracting 182 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 15:
180 divided by 26 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 3833333.6923076
The remainder is 24 after subtracting 156 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 16:
When dividing 240 by 26, we get 9 with a remainder of 6.
The next digit of our result is 9. 
Result so far: 3833333.69230769
If we subtract 234 from 240, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 3833333.69230769 with a remainder of 6e-09.