407236 ÷ 25 
The aim is to understand the frequency of 25 in 407236.

Advancing to step 1:
25 can be fit into 4 0 times, resulting in 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.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 25

Going ahead to step 2:
When dividing 40 by 25, we get 1 with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 15 after subtracting 25 from 40.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 25

Moving on to step 3:
If we divide 157 by 25, we get 6 and a remainder of 7.
The next digit of our result is 6. 
Result so far: 16.0
Subtracting 150 from 157 leaves us with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 25

On to step 4:
The number 25 fits into 72 2 times, leaving a remainder of 22.
Write down 2 as next digit of the result. 
Result so far: 162.0
If we subtract 50 from 72, we get 22.
Include the next digit (3) from the dividend after 22, then repeat: 223 / 25

Let's proceed to step 5:
The number 25 fits into 223 8 times, leaving a remainder of 23.
Record the quotient 8 as the next digit in the result. 
Result so far: 1628.0
Subtracting 200 from 223 leaves us with 23.
Bring next digit (6) of the dividend behind the 23 and repeat the process: 236 / 25

Going ahead to step 6:
236 divided by 25 is 9 with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 16289.0
If we take 225 away from 236, we end up 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.

Going ahead to step 7:
The number 25 fits into 110 4 times, leaving a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 16289.4
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.

Going ahead to step 8:
100 divided by 25 is 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 16289.44
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.

The final outcome is 16289.44, with a leftover of 0.0.