404477 ÷ 25 
The aim is to understand the frequency of 25 in 404477.

Advancing to step 1:
If we divide 4 by 25, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 25

Step 2:
40 divided by 25 is 1 with a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 15 after subtracting 25 from 40.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 25

Advancing to step 3:
If we divide 154 by 25, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we subtract 150 from 154, we get 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 25

Step 4:
When dividing 44 by 25, we get 1 with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 161.0
The remainder is 19 after subtracting 25 from 44.
Include the next digit (7) from the dividend after 19, then repeat: 197 / 25

Advancing to step 5:
197 divided by 25 is 7 with a remainder of 22.
The next digit of our result is 7. 
Result so far: 1617.0
Subtracting 175 from 197 leaves us with 22.
Fetch the next digit (7) from the dividend, attach it to 22 and continue: 227 / 25

Moving on to step 6:
25 can be fit into 227 9 times, resulting in a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 16179.0
The remainder is 2 after subtracting 225 from 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
If we divide 20 by 25, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 16179.0
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
If we divide 200 by 25, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 16179.08
If we subtract 200 from 200, we 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.

Advancing to step 9:
The number 25 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 16179.08
The remainder is 0 after subtracting 0 from 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 10:
When dividing 0 by 25, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 16179.08
Subtract 0 from 0 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 result is 16179.08 with a remainder of 0.0.