We divide 394860 by 25
The aim is to understand the frequency of 25 in 394860.

Moving on to step 1:
If we divide 3 by 25, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 25

On to step 2:
The number 25 fits into 39 1 times, leaving a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 14 after subtracting 25 from 39.
Fetch the next digit (4) from the dividend, attach it to 14 and continue: 144 / 25

Moving on to step 3:
If we divide 144 by 25, we get 5 and a remainder of 19.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 125 away from 144, we end up with 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 25

Let's proceed to step 4:
The number 25 fits into 198 7 times, leaving a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 157.0
Subtracting 175 from 198 leaves us with 23.
Grab the next digit (6) from the dividend, add it to 23, then carry on: 236 / 25

Let's proceed to step 5:
236 divided by 25 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 1579.0
Subtract 225 from 236 to get 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 25

On to step 6:
110 divided by 25 is 4 with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 15794.0
If we subtract 100 from 110, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
The number 25 fits into 100 4 times, leaving a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 15794.4
Subtract 100 from 100 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.
Record the quotient 0 as the next digit in the result. 
Result so far: 15794.4
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 9:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 15794.4
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 result is 15794.4 with a remainder of 0.0.