25273162 ÷ 660 
The aim is to understand the frequency of 660 in 25273162.

Moving on to step 1:
If we divide 2 by 660, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 660

Let's proceed to step 2:
25 divided by 660 is 0 with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Include the next digit (2) from the dividend after 25, then repeat: 252 / 660

Moving on to step 3:
660 goes into 252 0 times with a remainder of 252.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 252 and we're left with 252.
Include the next digit (7) from the dividend after 252, then repeat: 2527 / 660

Step 4:
660 goes into 2527 3 times with a remainder of 547.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 547 after subtracting 1980 from 2527.
Include the next digit (3) from the dividend after 547, then repeat: 5473 / 660

Let's proceed to step 5:
If we divide 5473 by 660, we get 8 and a remainder of 193.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Deduct 5280 from 5473 and we're left with 193.
Append the next digit (1) from the dividend to 193 and continue with: 1931 / 660

On to step 6:
If we divide 1931 by 660, we get 2 and a remainder of 611.
Write down 2 as next digit of the result. 
Result so far: 382.0
If we take 1320 away from 1931, we end up with 611.
Take the next digit (6) from the dividend and append it to 611, then repeat: 6116 / 660

Let's proceed to step 7:
When dividing 6116 by 660, we get 9 with a remainder of 176.
The next digit of our result is 9. 
Result so far: 3829.0
Subtract 5940 from 6116 to get 176.
Append the next digit (2) from the dividend to 176 and continue with: 1762 / 660

Advancing to step 8:
660 can be fit into 1762 2 times, resulting in a remainder of 442.
Write down 2 as next digit of the result. 
Result so far: 38292.0
Subtract 1320 from 1762 to get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Moving on to step 9:
660 can be fit into 4420 6 times, resulting in a remainder of 460.
Use 6 as the next digit of our solution. 
Result so far: 38292.6
The remainder is 460 after subtracting 3960 from 4420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Advancing to step 10:
4600 divided by 660 is 6 with a remainder of 640.
Put 6 as the next digit of the answer. 
Result so far: 38292.66
The remainder is 640 after subtracting 3960 from 4600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Our division results in 38292.66 with a remaining 0.64.