We're dividing 521169 by 26 
The aim is to understand the frequency of 26 in 521169.

Step 1:
26 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 26

On to step 2:
26 can be fit into 52 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 0 after subtracting 52 from 52.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 26

Let's proceed to step 3:
26 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 26

Going ahead to step 4:
26 goes into 11 0 times with a remainder of 11.
Put 0 as the next digit of the answer. 
Result so far: 200.0
Deduct 0 from 11 and we're left with 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 26

Going ahead to step 5:
116 divided by 26 is 4 with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 2004.0
The remainder is 12 after subtracting 104 from 116.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 26

Advancing to step 6:
If we divide 129 by 26, we get 4 and a remainder of 25.
The next digit of our result is 4. 
Result so far: 20044.0
If we subtract 104 from 129, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 7:
If we divide 250 by 26, we get 9 and a remainder of 16.
Put 9 as the next digit of the answer. 
Result so far: 20044.9
Subtracting 234 from 250 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 8:
160 divided by 26 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 20044.96
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
The number 26 fits into 40 1 times, leaving a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 20044.961
The remainder is 14 after subtracting 26 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
When dividing 140 by 26, we get 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 20044.9615
Subtracting 130 from 140 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
When dividing 100 by 26, we get 3 with a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 20044.96153
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 12:
If we divide 220 by 26, we get 8 and a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 20044.961538
Subtracting 208 from 220 leaves us 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.

Going ahead to step 13:
If we divide 120 by 26, we get 4 and a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 20044.9615384
Deduct 104 from 120 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 14:
The number 26 fits into 160 6 times, leaving a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 20044.96153846
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 20044.96153846 with a remainder of 4e-09.