We look at the division of 28831 by 3 
The aim is to understand the frequency of 3 in 28831.

Advancing to step 1:
When dividing 2 by 3, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 3

Moving on to step 2:
3 goes into 28 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 27 away from 28, we end up with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 3

Moving on to step 3:
If we divide 18 by 3, we get 6 and a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 96.0
If we subtract 18 from 18, we get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 3

Step 4:
If we divide 3 by 3, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 961.0
Deduct 3 from 3 and we're left with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 3

On to step 5:
1 divided by 3 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 9610.0
Deduct 0 from 1 and we're left 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.

On to step 6:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 9610.3
If we subtract 9 from 10, we 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.

Moving on to step 7:
10 divided by 3 is 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 9610.33
The remainder is 1 after subtracting 9 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

In conclusion, the division gives 9610.33 with a balance of 0.001.