543994 ÷ 5 
The aim is to understand the frequency of 5 in 543994.

On to step 1:
5 divided by 5 is 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 5 from 5 and we're left with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 5

Going ahead to step 2:
5 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 5

Moving on to step 3:
If we divide 43 by 5, we get 8 and a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 108.0
If we take 40 away from 43, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 5

On to step 4:
5 goes into 39 7 times with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 1087.0
Deduct 35 from 39 and we're left with 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 5

Going ahead to step 5:
If we divide 49 by 5, we get 9 and a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 10879.0
If we subtract 45 from 49, we get 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 5

Going ahead to step 6:
When dividing 44 by 5, we get 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 108798.0
If we subtract 40 from 44, we 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.

Moving on to step 7:
5 can be fit into 40 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 108798.8
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.

Step 8:
When dividing 0 by 5, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 108798.8
If we subtract 0 from 0, we get 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 9:
The number 5 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 108798.8
If we take 0 away from 0, we end up 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.

After the division, we end up with 108798.8 and a remainder of 0.0.