Let's divide 71473 by 3
The aim is to understand the frequency of 3 in 71473.

Advancing to step 1:
If we divide 7 by 3, we get 2 and a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 6 from 7, we get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 3

Going ahead to step 2:
3 can be fit into 11 3 times, resulting in a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 23.0
If we take 9 away from 11, we end up with 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 3

Step 3:
The number 3 fits into 24 8 times, leaving a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 238.0
Deduct 24 from 24 and we're left with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 3

On to step 4:
7 divided by 3 is 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 2382.0
If we take 6 away from 7, we end up with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 3

Let's proceed to step 5:
The number 3 fits into 13 4 times, leaving a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 23824.0
The remainder is 1 after subtracting 12 from 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 6:
10 divided by 3 is 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 23824.3
If we take 9 away from 10, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
When dividing 10 by 3, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 23824.33
Subtract 9 from 10 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 23824.33 and a remainder of 0.001.