We divide 154986 by 25
The aim is to understand the frequency of 25 in 154986.

On 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
Subtract 0 from 1 to get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 25

Advancing to step 2:
15 divided by 25 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 25

Let's proceed to step 3:
25 can be fit into 154 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 6.0
If we take 150 away from 154, we end up with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 25

Going ahead to step 4:
49 divided by 25 is 1 with a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 61.0
If we take 25 away from 49, we end up with 24.
Append the next digit (8) from the dividend to 24 and continue with: 248 / 25

Let's proceed to step 5:
When dividing 248 by 25, we get 9 with a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 619.0
Subtracting 225 from 248 leaves us with 23.
Grab the next digit (6) from the dividend, add it to 23, then carry on: 236 / 25

Advancing to step 6:
25 can be fit into 236 9 times, resulting in a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 6199.0
Subtract 225 from 236 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
25 goes into 110 4 times with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 6199.4
If we take 100 away from 110, we end up with 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:
25 goes into 100 4 times with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 6199.44
If we subtract 100 from 100, 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.

The final outcome is 6199.44, with a leftover of 0.0.