125638 divided by 26 
The aim is to understand the frequency of 26 in 125638.

On to step 1:
When dividing 1 by 26, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 26

Step 2:
26 can be fit into 12 0 times, resulting in a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 26

Step 3:
26 goes into 125 4 times with a remainder of 21.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 21 after subtracting 104 from 125.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 26

Let's proceed to step 4:
When dividing 216 by 26, we get 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
Subtract 208 from 216 to get 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 26

Going ahead to step 5:
When dividing 83 by 26, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 483.0
Subtract 78 from 83 to get 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 26

Going ahead to step 6:
The number 26 fits into 58 2 times, leaving a remainder of 6.
The next digit of our result is 2. 
Result so far: 4832.0
The remainder is 6 after subtracting 52 from 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
26 goes into 60 2 times with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 4832.2
Subtracting 52 from 60 leaves us 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.

Step 8:
The number 26 fits into 80 3 times, leaving a remainder of 2.
The next digit of our result is 3. 
Result so far: 4832.23
Deduct 78 from 80 and we're left with 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 9:
26 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 4832.23
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
The number 26 fits into 200 7 times, leaving a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 4832.2307
Subtract 182 from 200 to 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.

Moving on to step 11:
26 goes into 180 6 times with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 4832.23076
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 12:
When dividing 240 by 26, we get 9 with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 4832.230769
Subtracting 234 from 240 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
If we divide 60 by 26, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 4832.2307692
Subtracting 52 from 60 leaves us 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.

Going ahead to step 14:
80 divided by 26 is 3 with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 4832.23076923
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.

The quotient of the division is 4832.23076923, and the remainder is 2e-09.