We look at the division of 530421 by 26 
The aim is to understand the frequency of 26 in 530421.

Let's proceed to step 1:
5 divided by 26 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 26

Advancing to step 2:
26 can be fit into 53 2 times, resulting in a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 52 from 53 and we're left with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 26

Step 3:
When dividing 10 by 26, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
The remainder is 10 after subtracting 0 from 10.
Take the next digit (4) from the dividend and append it to 10, then repeat: 104 / 26

Going ahead to step 4:
26 can be fit into 104 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 204.0
Deduct 104 from 104 and we're left with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 26

Let's proceed to step 5:
2 divided by 26 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 2040.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 26

On to step 6:
26 can be fit into 21 0 times, resulting in a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 20400.0
Deduct 0 from 21 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 7:
210 divided by 26 is 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 20400.8
The remainder is 2 after subtracting 208 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
The number 26 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 20400.8
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
26 can be fit into 200 7 times, resulting in a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 20400.807
If we take 182 away from 200, we end up with 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 10:
The number 26 fits into 180 6 times, leaving a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 20400.8076
Subtracting 156 from 180 leaves us 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.

Let's proceed to step 11:
The number 26 fits into 240 9 times, leaving a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 20400.80769
If we take 234 away from 240, we end up 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.

Let's proceed to step 12:
When dividing 60 by 26, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 20400.807692
Subtract 52 from 60 to get 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 13:
26 goes into 80 3 times with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 20400.8076923
If we take 78 away from 80, we end up 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.

On to step 14:
26 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 20400.8076923
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 20400.8076923 with a remainder of 2e-08.