We look at the division of 26437 by 68 
The aim is to understand the frequency of 68 in 26437.

Going ahead to step 1:
68 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
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 / 68

On to step 2:
If we divide 26 by 68, we get 0 and a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 26 and we're left with 26.
Grab the next digit (4) from the dividend, add it to 26, then carry on: 264 / 68

On to step 3:
68 goes into 264 3 times with a remainder of 60.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 204 from 264 leaves us with 60.
Include the next digit (3) from the dividend after 60, then repeat: 603 / 68

Let's proceed to step 4:
When dividing 603 by 68, we get 8 with a remainder of 59.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Subtracting 544 from 603 leaves us with 59.
Bring next digit (7) of the dividend behind the 59 and repeat the process: 597 / 68

On to step 5:
The number 68 fits into 597 8 times, leaving a remainder of 53.
The next digit of our result is 8. 
Result so far: 388.0
If we take 544 away from 597, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 6:
The number 68 fits into 530 7 times, leaving a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 388.7
The remainder is 54 after subtracting 476 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
540 divided by 68 is 7 with a remainder of 64.
Put 7 as the next digit of the answer. 
Result so far: 388.77
Deduct 476 from 540 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Our division results in 388.77 with a remaining 0.064.