We divide 25405689 by 540
The aim is to understand the frequency of 540 in 25405689.

On to step 1:
The number 540 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
The remainder is 2 after subtracting 0 from 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 540

Advancing to step 2:
When dividing 25 by 540, we get 0 with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Take the next digit (4) from the dividend and append it to 25, then repeat: 254 / 540

On to step 3:
540 can be fit into 254 0 times, resulting in a remainder of 254.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 254, we end up with 254.
Bring next digit (0) of the dividend behind the 254 and repeat the process: 2540 / 540

Going ahead to step 4:
When dividing 2540 by 540, we get 4 with a remainder of 380.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 2160 away from 2540, we end up with 380.
Bring next digit (5) of the dividend behind the 380 and repeat the process: 3805 / 540

Going ahead to step 5:
When dividing 3805 by 540, we get 7 with a remainder of 25.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
If we subtract 3780 from 3805, we get 25.
Fetch the next digit (6) from the dividend, attach it to 25 and continue: 256 / 540

Step 6:
If we divide 256 by 540, we get 0 and a remainder of 256.
Write down 0 as next digit of the result. 
Result so far: 470.0
The remainder is 256 after subtracting 0 from 256.
Bring next digit (8) of the dividend behind the 256 and repeat the process: 2568 / 540

Advancing to step 7:
540 can be fit into 2568 4 times, resulting in a remainder of 408.
The number 4 becomes the next digit in our result. 
Result so far: 4704.0
Deduct 2160 from 2568 and we're left with 408.
Append the next digit (9) from the dividend to 408 and continue with: 4089 / 540

Going ahead to step 8:
4089 divided by 540 is 7 with a remainder of 309.
Use 7 as the next digit of our solution. 
Result so far: 47047.0
If we subtract 3780 from 4089, we get 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Let's proceed to step 9:
If we divide 3090 by 540, we get 5 and a remainder of 390.
Record the quotient 5 as the next digit in the result. 
Result so far: 47047.5
The remainder is 390 after subtracting 2700 from 3090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

On to step 10:
When dividing 3900 by 540, we get 7 with a remainder of 120.
The number 7 becomes the next digit in our result. 
Result so far: 47047.57
If we take 3780 away from 3900, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 11:
When dividing 1200 by 540, we get 2 with a remainder of 120.
Use 2 as the next digit of our solution. 
Result so far: 47047.572
Subtract 1080 from 1200 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 12:
The number 540 fits into 1200 2 times, leaving a remainder of 120.
The next digit of our result is 2. 
Result so far: 47047.5722
Subtracting 1080 from 1200 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Our division results in 47047.5722 with a remaining 0.0012.