We look at the division of 25279009 by 80 
The aim is to understand the frequency of 80 in 25279009.

Going ahead to step 1:
The number 80 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 80

Let's proceed to step 2:
80 can be fit into 25 0 times, resulting in a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Append the next digit (2) from the dividend to 25 and continue with: 252 / 80

Advancing to step 3:
80 goes into 252 3 times with a remainder of 12.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 240 from 252 and we're left with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 80

Moving on to step 4:
The number 80 fits into 127 1 times, leaving a remainder of 47.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Subtracting 80 from 127 leaves us with 47.
Append the next digit (9) from the dividend to 47 and continue with: 479 / 80

Let's proceed to step 5:
If we divide 479 by 80, we get 5 and a remainder of 79.
Record the quotient 5 as the next digit in the result. 
Result so far: 315.0
Subtract 400 from 479 to get 79.
Grab the next digit (0) from the dividend, add it to 79, then carry on: 790 / 80

Let's proceed to step 6:
When dividing 790 by 80, we get 9 with a remainder of 70.
Record the quotient 9 as the next digit in the result. 
Result so far: 3159.0
Deduct 720 from 790 and we're left with 70.
Bring next digit (0) of the dividend behind the 70 and repeat the process: 700 / 80

Step 7:
When dividing 700 by 80, we get 8 with a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 31598.0
Subtract 640 from 700 to get 60.
Bring next digit (9) of the dividend behind the 60 and repeat the process: 609 / 80

Moving on to step 8:
The number 80 fits into 609 7 times, leaving a remainder of 49.
Record the quotient 7 as the next digit in the result. 
Result so far: 315987.0
Subtract 560 from 609 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 9:
80 can be fit into 490 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 315987.6
If we subtract 480 from 490, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
80 goes into 100 1 times with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 315987.61
Subtract 80 from 100 to get 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 11:
When dividing 200 by 80, we get 2 with a remainder of 40.
The next digit of our result is 2. 
Result so far: 315987.612
If we take 160 away from 200, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
The number 80 fits into 400 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 315987.6125
Deduct 400 from 400 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.

On to step 13:
0 divided by 80 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 315987.6125
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.

Advancing to step 14:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 315987.6125
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.

In conclusion, the division gives 315987.6125 with a balance of 0.0.