669843 ÷ 5 
The aim is to understand the frequency of 5 in 669843.

Going ahead to step 1:
5 goes into 6 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 5 from 6, we get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 5

Moving on to step 2:
If we divide 16 by 5, we get 3 and a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 15 away from 16, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 5

Moving on to step 3:
5 goes into 19 3 times with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 133.0
The remainder is 4 after subtracting 15 from 19.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 5

Let's proceed to step 4:
5 can be fit into 48 9 times, resulting in a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 1339.0
Subtract 45 from 48 to get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 5

Advancing to step 5:
5 can be fit into 34 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 13396.0
Subtracting 30 from 34 leaves us with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 5

On to step 6:
5 can be fit into 43 8 times, resulting in a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 133968.0
Subtracting 40 from 43 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
The number 5 fits into 30 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 133968.6
If we take 30 away from 30, 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.

Going ahead to step 8:
If we divide 0 by 5, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 133968.6
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.

On to step 9:
If we divide 0 by 5, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 133968.6
Subtracting 0 from 0 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.

After the division, we end up with 133968.6 and a remainder of 0.0.