Let's divide 81166668 by 5
The aim is to understand the frequency of 5 in 81166668.

Going ahead to step 1:
8 divided by 5 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 5 from 8 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 5

Step 2:
5 can be fit into 31 6 times, resulting in a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we subtract 30 from 31, we get 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 5

On to step 3:
11 divided by 5 is 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 162.0
Deduct 10 from 11 and we're left with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 5

Step 4:
The number 5 fits into 16 3 times, leaving a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 1623.0
If we subtract 15 from 16, we get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 5

Moving on to step 5:
5 can be fit into 16 3 times, resulting in a remainder of 1.
The next digit of our result is 3. 
Result so far: 16233.0
Subtracting 15 from 16 leaves us with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 5

Moving on to step 6:
The number 5 fits into 16 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 162333.0
If we take 15 away from 16, we end up with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 5

Advancing to step 7:
When dividing 16 by 5, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 1623333.0
Subtract 15 from 16 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 5

Going ahead to step 8:
If we divide 18 by 5, we get 3 and a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 16233333.0
If we subtract 15 from 18, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 9:
30 divided by 5 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 16233333.6
Subtracting 30 from 30 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
If we divide 0 by 5, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 16233333.6
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
When dividing 0 by 5, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16233333.6
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 16233333.6 with a remaining 0.0.