287528 ÷ 25 
The aim is to understand the frequency of 25 in 287528.

On to step 1:
25 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 25

Moving on to step 2:
The number 25 fits into 28 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 25 from 28 and we're left with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 25

On to step 3:
The number 25 fits into 37 1 times, leaving a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 25 from 37 leaves us with 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 25

On to step 4:
25 can be fit into 125 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 115.0
Subtracting 125 from 125 leaves us with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 25

Let's proceed to step 5:
2 divided by 25 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 1150.0
If we take 0 away from 2, we end up with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 25

Advancing to step 6:
28 divided by 25 is 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 11501.0
Deduct 25 from 28 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
The number 25 fits into 30 1 times, leaving a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 11501.1
Subtract 25 from 30 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
25 can be fit into 50 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 11501.12
If we subtract 50 from 50, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 11501.12
Subtracting 0 from 0 leaves us 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 10:
When dividing 0 by 25, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 11501.12
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 quotient of the division is 11501.12, and the remainder is 0.0.