We divide 65428431 by 3
The aim is to understand the frequency of 3 in 65428431.

Advancing to step 1:
3 can be fit into 6 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 6 away from 6, we end up with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 3

Step 2:
When dividing 5 by 3, we get 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we subtract 3 from 5, we get 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 3

Moving on to step 3:
If we divide 24 by 3, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 218.0
Deduct 24 from 24 and we're left with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 3

Step 4:
When dividing 2 by 3, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 2180.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 3

Moving on to step 5:
If we divide 28 by 3, we get 9 and a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 21809.0
Subtracting 27 from 28 leaves us with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 3

Advancing to step 6:
When dividing 14 by 3, we get 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 218094.0
Deduct 12 from 14 and we're left with 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 3

On to step 7:
3 can be fit into 23 7 times, resulting in a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 2180947.0
If we take 21 away from 23, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 3

Let's proceed to step 8:
3 can be fit into 21 7 times, resulting in a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 21809477.0
Subtract 21 from 21 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
If we divide 0 by 3, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 21809477.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
When dividing 0 by 3, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21809477.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 21809477.0 and a remainder of 0.0.