399322 ÷ 6 
The aim is to understand the frequency of 6 in 399322.

Advancing to step 1:
When dividing 3 by 6, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 6

Step 2:
If we divide 39 by 6, we get 6 and a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 36 away from 39, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 6

Step 3:
If we divide 39 by 6, we get 6 and a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
Subtracting 36 from 39 leaves us with 3.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 6

Moving on to step 4:
When dividing 33 by 6, we get 5 with a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 665.0
Subtracting 30 from 33 leaves us with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 6

Going ahead to step 5:
32 divided by 6 is 5 with a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 6655.0
Subtracting 30 from 32 leaves us with 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 6

Moving on to step 6:
The number 6 fits into 22 3 times, leaving a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 66553.0
The remainder is 4 after subtracting 18 from 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
When dividing 40 by 6, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 66553.6
Subtract 36 from 40 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.

Let's proceed to step 8:
When dividing 40 by 6, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 66553.66
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 66553.66 with a remainder of 0.004.