154030 ÷ 25 
The aim is to understand the frequency of 25 in 154030.

Advancing to step 1:
The number 25 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 25

On to step 2:
When dividing 15 by 25, we get 0 with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 25

Let's proceed to step 3:
The number 25 fits into 154 6 times, leaving a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 4 after subtracting 150 from 154.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 25

Going ahead to step 4:
40 divided by 25 is 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 61.0
The remainder is 15 after subtracting 25 from 40.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 25

Going ahead to step 5:
If we divide 153 by 25, we get 6 and a remainder of 3.
The next digit of our result is 6. 
Result so far: 616.0
Subtract 150 from 153 to get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 25

Going ahead to step 6:
The number 25 fits into 30 1 times, leaving a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 6161.0
Subtracting 25 from 30 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
25 goes into 50 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 6161.2
Deduct 50 from 50 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 8:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 6161.2
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.

On to step 9:
0 divided by 25 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6161.2
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 final outcome is 6161.2, with a leftover of 0.0.