We look at the division of 149559 by 5 
The aim is to understand the frequency of 5 in 149559.

Advancing to step 1:
If we divide 1 by 5, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 5

Let's proceed to step 2:
When dividing 14 by 5, we get 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 10 from 14 to get 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 5

Moving on to step 3:
5 goes into 49 9 times with a remainder of 4.
The next digit of our result is 9. 
Result so far: 29.0
Deduct 45 from 49 and we're left with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 5

Advancing to step 4:
45 divided by 5 is 9 with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 299.0
Subtract 45 from 45 to get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 5

Step 5:
5 goes into 5 1 times with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 2991.0
Subtract 5 from 5 to get 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 5

Step 6:
5 goes into 9 1 times with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 29911.0
Subtract 5 from 9 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
5 goes into 40 8 times with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 29911.8
The remainder is 0 after subtracting 40 from 40.
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 8:
0 divided by 5 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 29911.8
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 9:
5 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 29911.8
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.

The final result is 29911.8 with a remainder of 0.0.