15727201 ÷ 28 
The aim is to understand the frequency of 28 in 15727201.

Going ahead to step 1:
When dividing 1 by 28, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 28

Advancing to step 2:
28 goes into 15 0 times with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 28

Moving on to step 3:
When dividing 157 by 28, we get 5 with a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 140 away from 157, we end up with 17.
Fetch the next digit (2) from the dividend, attach it to 17 and continue: 172 / 28

Step 4:
The number 28 fits into 172 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 56.0
The remainder is 4 after subtracting 168 from 172.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 28

On to step 5:
When dividing 47 by 28, we get 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 561.0
If we subtract 28 from 47, we get 19.
Take the next digit (2) from the dividend and append it to 19, then repeat: 192 / 28

Going ahead to step 6:
When dividing 192 by 28, we get 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 5616.0
Subtracting 168 from 192 leaves us with 24.
Grab the next digit (0) from the dividend, add it to 24, then carry on: 240 / 28

Step 7:
If we divide 240 by 28, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 56168.0
Subtracting 224 from 240 leaves us with 16.
Include the next digit (1) from the dividend after 16, then repeat: 161 / 28

On to step 8:
161 divided by 28 is 5 with a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 561685.0
Subtract 140 from 161 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 9:
210 divided by 28 is 7 with a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 561685.7
If we subtract 196 from 210, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 10:
If we divide 140 by 28, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 561685.75
If we take 140 away from 140, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
The number 28 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 561685.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
28 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 561685.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 561685.75, with a leftover of 0.0.