We're dividing 484103 by 3 
The aim is to understand the frequency of 3 in 484103.

On to step 1:
The number 3 fits into 4 1 times, leaving a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 3 away from 4, we end up with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 3

Moving on to step 2:
3 goes into 18 6 times with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we subtract 18 from 18, we get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 3

Step 3:
If we divide 4 by 3, we get 1 and a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 161.0
Subtract 3 from 4 to get 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 3

Moving on to step 4:
When dividing 11 by 3, we get 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 1613.0
Deduct 9 from 11 and we're left with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 3

Advancing to step 5:
When dividing 20 by 3, we get 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 16136.0
The remainder is 2 after subtracting 18 from 20.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 3

Moving on to step 6:
The number 3 fits into 23 7 times, leaving a remainder of 2.
The next digit of our result is 7. 
Result so far: 161367.0
If we subtract 21 from 23, we 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.

Going ahead to step 7:
3 goes into 20 6 times with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 161367.6
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.

On to step 8:
20 divided by 3 is 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 161367.66
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 outcome is 161367.66, with a leftover of 0.002.