399089 ÷ 6 
The aim is to understand the frequency of 6 in 399089.

Moving on to step 1:
When dividing 3 by 6, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 6

Going ahead to step 2:
39 divided by 6 is 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 3 after subtracting 36 from 39.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 6

Moving on to step 3:
39 divided by 6 is 6 with a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 66.0
Deduct 36 from 39 and we're left with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 6

On to step 4:
6 goes into 30 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 665.0
If we subtract 30 from 30, we get 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 6

Moving on to step 5:
If we divide 8 by 6, we get 1 and a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 6651.0
Subtracting 6 from 8 leaves us with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 6

Moving on to step 6:
If we divide 29 by 6, we get 4 and a remainder of 5.
Record the quotient 4 as the next digit in the result. 
Result so far: 66514.0
If we subtract 24 from 29, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
6 goes into 50 8 times with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 66514.8
If we take 48 away from 50, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
6 goes into 20 3 times with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 66514.83
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
6 can be fit into 20 3 times, resulting in a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 66514.833
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 66514.833 with a remaining 0.0002.