We divide 687884 by 3
The aim is to understand the frequency of 3 in 687884.

On to step 1:
The number 3 fits into 6 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 6 from 6, we get 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 3

Going ahead to step 2:
When dividing 8 by 3, we get 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 22.0
If we take 6 away from 8, we end up with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 3

Let's proceed to step 3:
When dividing 27 by 3, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 229.0
The remainder is 0 after subtracting 27 from 27.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 3

Going ahead to step 4:
8 divided by 3 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 2292.0
If we subtract 6 from 8, we get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 3

On to step 5:
3 can be fit into 28 9 times, resulting in a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 22929.0
Subtract 27 from 28 to get 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 3

Advancing to step 6:
3 can be fit into 14 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 229294.0
Deduct 12 from 14 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.

Let's proceed to step 7:
If we divide 20 by 3, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 229294.6
If we subtract 18 from 20, 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.

Advancing to step 8:
The number 3 fits into 20 6 times, leaving a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 229294.66
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.

In conclusion, the division gives 229294.66 with a balance of 0.002.