We're dividing 171522 by 28 
The aim is to understand the frequency of 28 in 171522.

Let's proceed to step 1:
28 goes into 1 0 times 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.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 28

Step 2:
28 goes into 17 0 times with a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 28

Step 3:
When dividing 171 by 28, we get 6 with a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 168 from 171, we get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 28

Let's proceed to step 4:
35 divided by 28 is 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 61.0
Deduct 28 from 35 and we're left with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 28

Advancing to step 5:
72 divided by 28 is 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 612.0
If we take 56 away from 72, we end up with 16.
Grab the next digit (2) from the dividend, add it to 16, then carry on: 162 / 28

Let's proceed to step 6:
28 goes into 162 5 times with a remainder of 22.
Use 5 as the next digit of our solution. 
Result so far: 6125.0
Subtract 140 from 162 to 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.

On to step 7:
28 can be fit into 220 7 times, resulting in a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 6125.7
If we take 196 away from 220, 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.

Moving on to step 8:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 6125.78
Subtracting 224 from 240 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 9:
The number 28 fits into 160 5 times, leaving a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 6125.785
Subtracting 140 from 160 leaves us 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.

Let's proceed to step 10:
28 goes into 200 7 times with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 6125.7857
Subtract 196 from 200 to get 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 11:
If we divide 40 by 28, we get 1 and a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 6125.78571
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 12:
The number 28 fits into 120 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 6125.785714
If we take 112 away from 120, we end up 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.

Moving on to step 13:
When dividing 80 by 28, we get 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 6125.7857142
Subtract 56 from 80 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 14:
240 divided by 28 is 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 6125.78571428
Deduct 224 from 240 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.

After the division, we end up with 6125.78571428 and a remainder of 1.6e-08.