We're dividing 25871202 by 680 
The aim is to understand the frequency of 680 in 25871202.

On to step 1:
680 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 680

Step 2:
25 divided by 680 is 0 with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Grab the next digit (8) from the dividend, add it to 25, then carry on: 258 / 680

Let's proceed to step 3:
The number 680 fits into 258 0 times, leaving a remainder of 258.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 258 and we're left with 258.
Include the next digit (7) from the dividend after 258, then repeat: 2587 / 680

Moving on to step 4:
2587 divided by 680 is 3 with a remainder of 547.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 2040 from 2587, we get 547.
Include the next digit (1) from the dividend after 547, then repeat: 5471 / 680

Moving on to step 5:
680 goes into 5471 8 times with a remainder of 31.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we subtract 5440 from 5471, we get 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 680

Let's proceed to step 6:
680 can be fit into 312 0 times, resulting in a remainder of 312.
Use 0 as the next digit of our solution. 
Result so far: 380.0
If we subtract 0 from 312, we get 312.
Include the next digit (0) from the dividend after 312, then repeat: 3120 / 680

Advancing to step 7:
680 goes into 3120 4 times with a remainder of 400.
Write down 4 as next digit of the result. 
Result so far: 3804.0
Subtracting 2720 from 3120 leaves us with 400.
Take the next digit (2) from the dividend and append it to 400, then repeat: 4002 / 680

Going ahead to step 8:
680 goes into 4002 5 times with a remainder of 602.
Put 5 as the next digit of the answer. 
Result so far: 38045.0
Subtract 3400 from 4002 to get 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Step 9:
6020 divided by 680 is 8 with a remainder of 580.
The next digit of our result is 8. 
Result so far: 38045.8
Subtracting 5440 from 6020 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Advancing to step 10:
680 can be fit into 5800 8 times, resulting in a remainder of 360.
Write down 8 as next digit of the result. 
Result so far: 38045.88
If we subtract 5440 from 5800, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

After the division, we end up with 38045.88 and a remainder of 0.36.