26769401 divided by 686 
The aim is to understand the frequency of 686 in 26769401.

Going ahead to step 1:
When dividing 2 by 686, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 686

Moving on to step 2:
When dividing 26 by 686, we get 0 with a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 26, we end up with 26.
Take the next digit (7) from the dividend and append it to 26, then repeat: 267 / 686

Step 3:
When dividing 267 by 686, we get 0 with a remainder of 267.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 267, we end up with 267.
Grab the next digit (6) from the dividend, add it to 267, then carry on: 2676 / 686

Step 4:
When dividing 2676 by 686, we get 3 with a remainder of 618.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 618 after subtracting 2058 from 2676.
Fetch the next digit (9) from the dividend, attach it to 618 and continue: 6189 / 686

Advancing to step 5:
686 can be fit into 6189 9 times, resulting in a remainder of 15.
The next digit of our result is 9. 
Result so far: 39.0
The remainder is 15 after subtracting 6174 from 6189.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 686

On to step 6:
154 divided by 686 is 0 with a remainder of 154.
Put 0 as the next digit of the answer. 
Result so far: 390.0
If we subtract 0 from 154, we get 154.
Include the next digit (0) from the dividend after 154, then repeat: 1540 / 686

Moving on to step 7:
686 can be fit into 1540 2 times, resulting in a remainder of 168.
The number 2 becomes the next digit in our result. 
Result so far: 3902.0
Subtract 1372 from 1540 to get 168.
Take the next digit (1) from the dividend and append it to 168, then repeat: 1681 / 686

On to step 8:
686 can be fit into 1681 2 times, resulting in a remainder of 309.
Record the quotient 2 as the next digit in the result. 
Result so far: 39022.0
If we take 1372 away from 1681, we end up with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

On to step 9:
When dividing 3090 by 686, we get 4 with a remainder of 346.
The number 4 becomes the next digit in our result. 
Result so far: 39022.4
The remainder is 346 after subtracting 2744 from 3090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

On to step 10:
686 goes into 3460 5 times with a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 39022.45
If we take 3430 away from 3460, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
686 goes into 300 0 times with a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 39022.45
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 12:
686 goes into 3000 4 times with a remainder of 256.
The number 4 becomes the next digit in our result. 
Result so far: 39022.4504
Subtracting 2744 from 3000 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 13:
The number 686 fits into 2560 3 times, leaving a remainder of 502.
Write down 3 as next digit of the result. 
Result so far: 39022.45043
Subtract 2058 from 2560 to get 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Step 14:
If we divide 5020 by 686, we get 7 and a remainder of 218.
The number 7 becomes the next digit in our result. 
Result so far: 39022.450437
The remainder is 218 after subtracting 4802 from 5020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Let's proceed to step 15:
2180 divided by 686 is 3 with a remainder of 122.
The next digit of our result is 3. 
Result so far: 39022.4504373
Subtract 2058 from 2180 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 16:
The number 686 fits into 1220 1 times, leaving a remainder of 534.
The number 1 becomes the next digit in our result. 
Result so far: 39022.45043731
If we subtract 686 from 1220, we get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

The final outcome is 39022.45043731, with a leftover of 5.34e-07.