Let's divide 488586 by 25
The aim is to understand the frequency of 25 in 488586.

Going ahead to step 1:
25 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 25

On to step 2:
25 can be fit into 48 1 times, resulting in a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 25 from 48, we get 23.
Fetch the next digit (8) from the dividend, attach it to 23 and continue: 238 / 25

Let's proceed to step 3:
25 can be fit into 238 9 times, resulting in a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 225 from 238 to get 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 25

On to step 4:
When dividing 135 by 25, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 195.0
If we subtract 125 from 135, we get 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 25

Step 5:
If we divide 108 by 25, we get 4 and a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 1954.0
Subtracting 100 from 108 leaves us with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 25

Moving on to step 6:
If we divide 86 by 25, we get 3 and a remainder of 11.
The next digit of our result is 3. 
Result so far: 19543.0
The remainder is 11 after subtracting 75 from 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
If we divide 110 by 25, we get 4 and a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 19543.4
Deduct 100 from 110 and we're left 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.

Let's proceed to step 8:
25 can be fit into 100 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 19543.44
If we take 100 away from 100, 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.

Our division results in 19543.44 with a remaining 0.0.