We're dividing 25279397 by 154 
The aim is to understand the frequency of 154 in 25279397.

Going ahead to step 1:
When dividing 2 by 154, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 154

Let's proceed to step 2:
If we divide 25 by 154, we get 0 and a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Bring next digit (2) of the dividend behind the 25 and repeat the process: 252 / 154

On to step 3:
252 divided by 154 is 1 with a remainder of 98.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 154 from 252 to get 98.
Append the next digit (7) from the dividend to 98 and continue with: 987 / 154

Going ahead to step 4:
987 divided by 154 is 6 with a remainder of 63.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 924 from 987, we get 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 154

Advancing to step 5:
154 can be fit into 639 4 times, resulting in a remainder of 23.
The number 4 becomes the next digit in our result. 
Result so far: 164.0
The remainder is 23 after subtracting 616 from 639.
Include the next digit (3) from the dividend after 23, then repeat: 233 / 154

Let's proceed to step 6:
154 goes into 233 1 times with a remainder of 79.
Use 1 as the next digit of our solution. 
Result so far: 1641.0
If we subtract 154 from 233, we get 79.
Include the next digit (9) from the dividend after 79, then repeat: 799 / 154

Step 7:
When dividing 799 by 154, we get 5 with a remainder of 29.
Record the quotient 5 as the next digit in the result. 
Result so far: 16415.0
Subtracting 770 from 799 leaves us with 29.
Bring next digit (7) of the dividend behind the 29 and repeat the process: 297 / 154

Let's proceed to step 8:
154 can be fit into 297 1 times, resulting in a remainder of 143.
Use 1 as the next digit of our solution. 
Result so far: 164151.0
The remainder is 143 after subtracting 154 from 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Moving on to step 9:
The number 154 fits into 1430 9 times, leaving a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 164151.9
The remainder is 44 after subtracting 1386 from 1430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 10:
The number 154 fits into 440 2 times, leaving a remainder of 132.
The next digit of our result is 2. 
Result so far: 164151.92
The remainder is 132 after subtracting 308 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 11:
The number 154 fits into 1320 8 times, leaving a remainder of 88.
Put 8 as the next digit of the answer. 
Result so far: 164151.928
If we take 1232 away from 1320, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 12:
880 divided by 154 is 5 with a remainder of 110.
The number 5 becomes the next digit in our result. 
Result so far: 164151.9285
Subtract 770 from 880 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 13:
If we divide 1100 by 154, we get 7 and a remainder of 22.
Use 7 as the next digit of our solution. 
Result so far: 164151.92857
If we subtract 1078 from 1100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 14:
If we divide 220 by 154, we get 1 and a remainder of 66.
Put 1 as the next digit of the answer. 
Result so far: 164151.928571
Subtract 154 from 220 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 15:
If we divide 660 by 154, we get 4 and a remainder of 44.
Write down 4 as next digit of the result. 
Result so far: 164151.9285714
If we subtract 616 from 660, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 16:
If we divide 440 by 154, we get 2 and a remainder of 132.
The number 2 becomes the next digit in our result. 
Result so far: 164151.92857142
Deduct 308 from 440 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

In conclusion, the division gives 164151.92857142 with a balance of 1.32e-07.