We're dividing 637751 by 26 
The aim is to understand the frequency of 26 in 637751.

Advancing to step 1:
26 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 26

Advancing to step 2:
63 divided by 26 is 2 with a remainder of 11.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 11 after subtracting 52 from 63.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 26

Let's proceed to step 3:
26 goes into 117 4 times with a remainder of 13.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
If we subtract 104 from 117, we get 13.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 26

Advancing to step 4:
26 can be fit into 137 5 times, resulting in a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 245.0
Deduct 130 from 137 and we're left with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 26

Going ahead to step 5:
If we divide 75 by 26, we get 2 and a remainder of 23.
Write down 2 as next digit of the result. 
Result so far: 2452.0
Subtracting 52 from 75 leaves us with 23.
Append the next digit (1) from the dividend to 23 and continue with: 231 / 26

Moving on to step 6:
When dividing 231 by 26, we get 8 with a remainder of 23.
Write down 8 as next digit of the result. 
Result so far: 24528.0
Subtracting 208 from 231 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
When dividing 230 by 26, we get 8 with a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 24528.8
The remainder is 22 after subtracting 208 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 8:
If we divide 220 by 26, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 24528.88
Deduct 208 from 220 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 24528.88, with a leftover of 0.012.