25885529 divided by 680 
The aim is to understand the frequency of 680 in 25885529.

Step 1:
2 divided by 680 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 680

Advancing to step 2:
The number 680 fits into 25 0 times, leaving a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Grab the next digit (8) from the dividend, add it to 25, then carry on: 258 / 680

Step 3:
680 goes into 258 0 times with a remainder of 258.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 258, we get 258.
Take the next digit (8) from the dividend and append it to 258, then repeat: 2588 / 680

Step 4:
When dividing 2588 by 680, we get 3 with a remainder of 548.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 2040 from 2588, we get 548.
Include the next digit (5) from the dividend after 548, then repeat: 5485 / 680

Step 5:
680 goes into 5485 8 times with a remainder of 45.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Subtracting 5440 from 5485 leaves us with 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 680

On to step 6:
When dividing 455 by 680, we get 0 with a remainder of 455.
Write down 0 as next digit of the result. 
Result so far: 380.0
If we subtract 0 from 455, we get 455.
Include the next digit (2) from the dividend after 455, then repeat: 4552 / 680

Let's proceed to step 7:
When dividing 4552 by 680, we get 6 with a remainder of 472.
The number 6 becomes the next digit in our result. 
Result so far: 3806.0
If we subtract 4080 from 4552, we get 472.
Grab the next digit (9) from the dividend, add it to 472, then carry on: 4729 / 680

Step 8:
680 goes into 4729 6 times with a remainder of 649.
The number 6 becomes the next digit in our result. 
Result so far: 38066.0
If we subtract 4080 from 4729, we get 649.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6490, and continue the process.

On to step 9:
680 goes into 6490 9 times with a remainder of 370.
Put 9 as the next digit of the answer. 
Result so far: 38066.9
Subtracting 6120 from 6490 leaves us with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 10:
When dividing 3700 by 680, we get 5 with a remainder of 300.
The number 5 becomes the next digit in our result. 
Result so far: 38066.95
If we subtract 3400 from 3700, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 11:
680 can be fit into 3000 4 times, resulting in a remainder of 280.
Use 4 as the next digit of our solution. 
Result so far: 38066.954
Deduct 2720 from 3000 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 12:
When dividing 2800 by 680, we get 4 with a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 38066.9544
Subtract 2720 from 2800 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

After the division, we end up with 38066.9544 and a remainder of 0.0008.