We're dividing 643592 by 6 
The aim is to understand the frequency of 6 in 643592.

On to step 1:
The number 6 fits into 6 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 0 after subtracting 6 from 6.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 6

Advancing to step 2:
The number 6 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 4 to get 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 6

Let's proceed to step 3:
If we divide 43 by 6, we get 7 and a remainder of 1.
The next digit of our result is 7. 
Result so far: 107.0
Subtracting 42 from 43 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 6

Let's proceed to step 4:
15 divided by 6 is 2 with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 1072.0
Subtract 12 from 15 to get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 6

Step 5:
39 divided by 6 is 6 with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 10726.0
Deduct 36 from 39 and we're left with 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 6

Let's proceed 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: 107265.0
Subtract 30 from 32 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.

Step 7:
The number 6 fits into 20 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 107265.3
Subtracting 18 from 20 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.

On to step 8:
The number 6 fits into 20 3 times, leaving a remainder of 2.
The next digit of our result is 3. 
Result so far: 107265.33
Subtracting 18 from 20 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.

In conclusion, the division gives 107265.33 with a balance of 0.002.