We're dividing 66171473 by 6 
The aim is to understand the frequency of 6 in 66171473.

Moving on to step 1:
When dividing 6 by 6, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 6 from 6 to get 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 6

On to step 2:
When dividing 6 by 6, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 6 from 6 leaves us with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 6

Let's proceed to step 3:
When dividing 1 by 6, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 110.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 6

On to step 4:
17 divided by 6 is 2 with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 1102.0
The remainder is 5 after subtracting 12 from 17.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 6

Moving on to step 5:
The number 6 fits into 51 8 times, leaving a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 11028.0
The remainder is 3 after subtracting 48 from 51.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 6

Moving on to step 6:
34 divided by 6 is 5 with a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 110285.0
The remainder is 4 after subtracting 30 from 34.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 6

On to step 7:
6 can be fit into 47 7 times, resulting in a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 1102857.0
Deduct 42 from 47 and we're left with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 6

Let's proceed to step 8:
6 goes into 53 8 times with a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 11028578.0
Deduct 48 from 53 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
50 divided by 6 is 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 11028578.8
The remainder is 2 after subtracting 48 from 50.
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 10:
6 can be fit into 20 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 11028578.83
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.

Advancing to step 11:
20 divided by 6 is 3 with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 11028578.833
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.

The final result is 11028578.833 with a remainder of 0.0002.