We look at the division of 156286 by 25 
The aim is to understand the frequency of 25 in 156286.

Step 1:
1 divided by 25 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 25

Step 2:
If we divide 15 by 25, we get 0 and a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 25

Moving on to step 3:
25 goes into 156 6 times with a remainder of 6.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 150 from 156 to get 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 25

Advancing to step 4:
25 goes into 62 2 times with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 62.0
Subtracting 50 from 62 leaves us with 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 25

On to step 5:
128 divided by 25 is 5 with a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 625.0
If we subtract 125 from 128, we get 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 25

Moving on to step 6:
The number 25 fits into 36 1 times, leaving a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 6251.0
Subtracting 25 from 36 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
25 can be fit into 110 4 times, resulting in a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 6251.4
Subtracting 100 from 110 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 8:
100 divided by 25 is 4 with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 6251.44
Subtracting 100 from 100 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.

After the division, we end up with 6251.44 and a remainder of 0.0.