We divide 351324 by 3
The aim is to understand the frequency of 3 in 351324.

On to step 1:
If we divide 3 by 3, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 3 from 3, we get 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 3

Let's proceed to step 2:
5 divided by 3 is 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Deduct 3 from 5 and we're left with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 3

Step 3:
When dividing 21 by 3, we get 7 with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
Subtract 21 from 21 to get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 3

Step 4:
The number 3 fits into 3 1 times, leaving a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1171.0
Deduct 3 from 3 and we're left with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 3

Advancing to step 5:
2 divided by 3 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 11710.0
If we take 0 away from 2, we end up with 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 3

On to step 6:
The number 3 fits into 24 8 times, leaving a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 117108.0
Subtracting 24 from 24 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.

Going ahead to step 7:
3 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 117108.0
The remainder is 0 after subtracting 0 from 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 8:
When dividing 0 by 3, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 117108.0
Subtract 0 from 0 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.

In conclusion, the division gives 117108.0 with a balance of 0.0.