We're dividing 304570 by 25 
The aim is to understand the frequency of 25 in 304570.

Advancing to step 1:
The number 25 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 25

Step 2:
25 can be fit into 30 1 times, resulting in a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 25 from 30 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 25

Advancing to step 3:
54 divided by 25 is 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 50 from 54 and we're left with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 25

Going ahead to step 4:
45 divided by 25 is 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
Deduct 25 from 45 and we're left with 20.
Include the next digit (7) from the dividend after 20, then repeat: 207 / 25

On to step 5:
207 divided by 25 is 8 with a remainder of 7.
The next digit of our result is 8. 
Result so far: 1218.0
If we take 200 away from 207, we end up with 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 25

Moving on to step 6:
When dividing 70 by 25, we get 2 with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 12182.0
Subtracting 50 from 70 leaves us 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.

Step 7:
200 divided by 25 is 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 12182.8
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.

On to step 8:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 12182.8
If we subtract 0 from 0, 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.

Going ahead to step 9:
0 divided by 25 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12182.8
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.

The quotient of the division is 12182.8, and the remainder is 0.0.