281615 ÷ 25 
The aim is to understand the frequency of 25 in 281615.

Step 1:
The number 25 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 25

Advancing to step 2:
25 can be fit into 28 1 times, resulting in a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 25 from 28 leaves us with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 25

Moving on to step 3:
The number 25 fits into 31 1 times, leaving a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 25 from 31 leaves us with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 25

Moving on to step 4:
25 can be fit into 66 2 times, resulting in a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 112.0
Subtract 50 from 66 to get 16.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 25

Advancing to step 5:
The number 25 fits into 161 6 times, leaving a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 1126.0
Subtract 150 from 161 to get 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 25

On to step 6:
25 can be fit into 115 4 times, resulting in a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 11264.0
If we take 100 away from 115, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
25 can be fit into 150 6 times, resulting in a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 11264.6
Subtract 150 from 150 to 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.

Step 8:
0 divided by 25 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11264.6
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.

On to step 9:
0 divided by 25 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 11264.6
If we take 0 away from 0, 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.

The final outcome is 11264.6, with a leftover of 0.0.