We look at the division of 684572 by 6 
The aim is to understand the frequency of 6 in 684572.

On to step 1:
When dividing 6 by 6, we get 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 6 from 6 leaves us with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 6

On to step 2:
If we divide 8 by 6, we get 1 and a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we take 6 away from 8, we end up with 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 6

On to step 3:
The number 6 fits into 24 4 times, leaving a remainder of 0.
The next digit of our result is 4. 
Result so far: 114.0
If we subtract 24 from 24, we get 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 6

Let's proceed to step 4:
When dividing 5 by 6, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 1140.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 6

Advancing to step 5:
6 goes into 57 9 times with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 11409.0
If we take 54 away from 57, we end up with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 6

Moving on to step 6:
If we divide 32 by 6, we get 5 and a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 114095.0
Subtracting 30 from 32 leaves us 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.

Advancing to step 7:
6 can be fit into 20 3 times, resulting in a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 114095.3
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
20 divided by 6 is 3 with a remainder of 2.
The next digit of our result is 3. 
Result so far: 114095.33
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 114095.33 with a remainder of 0.002.