We're dividing 993888 by 3 
The aim is to understand the frequency of 3 in 993888.

Step 1:
3 can be fit into 9 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 0 after subtracting 9 from 9.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 3

Step 2:
When dividing 9 by 3, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
If we take 9 away from 9, we end up with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 3

Step 3:
If we divide 3 by 3, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 331.0
Subtract 3 from 3 to get 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 3

Let's proceed to step 4:
If we divide 8 by 3, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 3312.0
The remainder is 2 after subtracting 6 from 8.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 3

Step 5:
If we divide 28 by 3, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 33129.0
If we subtract 27 from 28, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 3

Let's proceed to step 6:
18 divided by 3 is 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 331296.0
The remainder is 0 after subtracting 18 from 18.
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:
When dividing 0 by 3, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 331296.0
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:
3 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 331296.0
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.

The final result is 331296.0 with a remainder of 0.0.