66928616 divided by 26 
The aim is to understand the frequency of 26 in 66928616.

Advancing to step 1:
If we divide 6 by 26, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 26

On to step 2:
When dividing 66 by 26, we get 2 with a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 52 from 66 to get 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 26

Moving on to step 3:
149 divided by 26 is 5 with a remainder of 19.
Use 5 as the next digit of our solution. 
Result so far: 25.0
If we subtract 130 from 149, we get 19.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 26

Step 4:
26 goes into 192 7 times with a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 257.0
Deduct 182 from 192 and we're left with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 26

Advancing to step 5:
26 can be fit into 108 4 times, resulting in a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 2574.0
The remainder is 4 after subtracting 104 from 108.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 26

On to step 6:
26 goes into 46 1 times with a remainder of 20.
The next digit of our result is 1. 
Result so far: 25741.0
If we take 26 away from 46, we end up with 20.
Fetch the next digit (1) from the dividend, attach it to 20 and continue: 201 / 26

Moving on to step 7:
26 can be fit into 201 7 times, resulting in a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 257417.0
Subtract 182 from 201 to get 19.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 26

Going ahead to step 8:
26 goes into 196 7 times with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 2574177.0
Deduct 182 from 196 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 9:
26 goes into 140 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 2574177.5
If we take 130 away from 140, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
100 divided by 26 is 3 with a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 2574177.53
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 11:
220 divided by 26 is 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 2574177.538
The remainder is 12 after subtracting 208 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 12:
When dividing 120 by 26, we get 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 2574177.5384
Deduct 104 from 120 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
When dividing 160 by 26, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 2574177.53846
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
If we divide 40 by 26, we get 1 and a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 2574177.538461
If we subtract 26 from 40, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 15:
140 divided by 26 is 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 2574177.5384615
Deduct 130 from 140 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 16:
If we divide 100 by 26, we get 3 and a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 2574177.53846153
The remainder is 22 after subtracting 78 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

After the division, we end up with 2574177.53846153 and a remainder of 2.2e-08.