Let's divide 25680691 by 345
The aim is to understand the frequency of 345 in 25680691.

Going ahead to step 1:
345 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 345

Let's proceed to step 2:
25 divided by 345 is 0 with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Take the next digit (6) from the dividend and append it to 25, then repeat: 256 / 345

Let's proceed to step 3:
The number 345 fits into 256 0 times, leaving a remainder of 256.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 256, we end up with 256.
Bring next digit (8) of the dividend behind the 256 and repeat the process: 2568 / 345

Going ahead to step 4:
2568 divided by 345 is 7 with a remainder of 153.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 2415 from 2568 leaves us with 153.
Grab the next digit (0) from the dividend, add it to 153, then carry on: 1530 / 345

Step 5:
When dividing 1530 by 345, we get 4 with a remainder of 150.
The next digit of our result is 4. 
Result so far: 74.0
The remainder is 150 after subtracting 1380 from 1530.
Include the next digit (6) from the dividend after 150, then repeat: 1506 / 345

On to step 6:
1506 divided by 345 is 4 with a remainder of 126.
Put 4 as the next digit of the answer. 
Result so far: 744.0
If we subtract 1380 from 1506, we get 126.
Grab the next digit (9) from the dividend, add it to 126, then carry on: 1269 / 345

Advancing to step 7:
345 goes into 1269 3 times with a remainder of 234.
The number 3 becomes the next digit in our result. 
Result so far: 7443.0
If we subtract 1035 from 1269, we get 234.
Bring next digit (1) of the dividend behind the 234 and repeat the process: 2341 / 345

Going ahead to step 8:
When dividing 2341 by 345, we get 6 with a remainder of 271.
Use 6 as the next digit of our solution. 
Result so far: 74436.0
If we take 2070 away from 2341, we end up with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Going ahead to step 9:
345 can be fit into 2710 7 times, resulting in a remainder of 295.
Put 7 as the next digit of the answer. 
Result so far: 74436.7
Subtracting 2415 from 2710 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 10:
If we divide 2950 by 345, we get 8 and a remainder of 190.
Write down 8 as next digit of the result. 
Result so far: 74436.78
If we take 2760 away from 2950, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 11:
1900 divided by 345 is 5 with a remainder of 175.
Write down 5 as next digit of the result. 
Result so far: 74436.785
The remainder is 175 after subtracting 1725 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Going ahead to step 12:
345 can be fit into 1750 5 times, resulting in a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 74436.7855
If we take 1725 away from 1750, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 74436.7855 with a remainder of 0.00025.