Let's divide 817454 by 3
The aim is to understand the frequency of 3 in 817454.

Advancing to step 1:
The number 3 fits into 8 2 times, leaving a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 6 away from 8, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 3

Moving on to step 2:
3 goes into 21 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Subtracting 21 from 21 leaves us with 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 3

On to step 3:
3 can be fit into 7 2 times, resulting in a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 272.0
Deduct 6 from 7 and we're left with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 3

On to step 4:
If we divide 14 by 3, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 2724.0
Subtracting 12 from 14 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 3

Let's proceed to step 5:
25 divided by 3 is 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 27248.0
Subtracting 24 from 25 leaves us with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 3

Advancing to step 6:
3 goes into 14 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 272484.0
The remainder is 2 after subtracting 12 from 14.
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 3 fits into 20 6 times, leaving a remainder of 2.
The next digit of our result is 6. 
Result so far: 272484.6
If we take 18 away from 20, 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.

Moving on to step 8:
20 divided by 3 is 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 272484.66
Deduct 18 from 20 and we're left 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.

The quotient of the division is 272484.66, and the remainder is 0.002.