We're dividing 81458608 by 540 
The aim is to understand the frequency of 540 in 81458608.

On to step 1:
If we divide 8 by 540, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 540

Going ahead to step 2:
If we divide 81 by 540, we get 0 and a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Grab the next digit (4) from the dividend, add it to 81, then carry on: 814 / 540

Moving on to step 3:
When dividing 814 by 540, we get 1 with a remainder of 274.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 274 after subtracting 540 from 814.
Fetch the next digit (5) from the dividend, attach it to 274 and continue: 2745 / 540

Let's proceed to step 4:
540 goes into 2745 5 times with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 2700 from 2745, we get 45.
Fetch the next digit (8) from the dividend, attach it to 45 and continue: 458 / 540

Going ahead to step 5:
The number 540 fits into 458 0 times, leaving a remainder of 458.
Put 0 as the next digit of the answer. 
Result so far: 150.0
If we subtract 0 from 458, we get 458.
Bring next digit (6) of the dividend behind the 458 and repeat the process: 4586 / 540

Let's proceed to step 6:
540 goes into 4586 8 times with a remainder of 266.
Record the quotient 8 as the next digit in the result. 
Result so far: 1508.0
Subtract 4320 from 4586 to get 266.
Take the next digit (0) from the dividend and append it to 266, then repeat: 2660 / 540

Going ahead to step 7:
If we divide 2660 by 540, we get 4 and a remainder of 500.
The number 4 becomes the next digit in our result. 
Result so far: 15084.0
Subtract 2160 from 2660 to get 500.
Append the next digit (8) from the dividend to 500 and continue with: 5008 / 540

Step 8:
If we divide 5008 by 540, we get 9 and a remainder of 148.
Put 9 as the next digit of the answer. 
Result so far: 150849.0
Subtracting 4860 from 5008 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 9:
1480 divided by 540 is 2 with a remainder of 400.
The number 2 becomes the next digit in our result. 
Result so far: 150849.2
If we subtract 1080 from 1480, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 10:
540 can be fit into 4000 7 times, resulting in a remainder of 220.
Put 7 as the next digit of the answer. 
Result so far: 150849.27
If we subtract 3780 from 4000, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 11:
540 goes into 2200 4 times with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 150849.274
Subtracting 2160 from 2200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 12:
When dividing 400 by 540, we get 0 with a remainder of 400.
The next digit of our result is 0. 
Result so far: 150849.274
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 13:
If we divide 4000 by 540, we get 7 and a remainder of 220.
The next digit of our result is 7. 
Result so far: 150849.27407
If we subtract 3780 from 4000, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 14:
The number 540 fits into 2200 4 times, leaving a remainder of 40.
The next digit of our result is 4. 
Result so far: 150849.274074
Deduct 2160 from 2200 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 15:
When dividing 400 by 540, we get 0 with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 150849.274074
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 16:
4000 divided by 540 is 7 with a remainder of 220.
Write down 7 as next digit of the result. 
Result so far: 150849.27407407
If we subtract 3780 from 4000, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The final outcome is 150849.27407407, with a leftover of 2.2e-07.