We look at the division of 393342 by 300 
The aim is to understand the frequency of 300 in 393342.

Going ahead to step 1:
If we divide 3 by 300, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 300

Advancing to step 2:
The number 300 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (3) from the dividend after 39, then repeat: 393 / 300

Going ahead to step 3:
300 goes into 393 1 times with a remainder of 93.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 300 from 393 leaves us with 93.
Include the next digit (3) from the dividend after 93, then repeat: 933 / 300

Advancing to step 4:
300 goes into 933 3 times with a remainder of 33.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we subtract 900 from 933, we get 33.
Grab the next digit (4) from the dividend, add it to 33, then carry on: 334 / 300

On to step 5:
If we divide 334 by 300, we get 1 and a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 131.0
If we subtract 300 from 334, we get 34.
Fetch the next digit (2) from the dividend, attach it to 34 and continue: 342 / 300

Moving on to step 6:
When dividing 342 by 300, we get 1 with a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 1311.0
Subtracting 300 from 342 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 7:
When dividing 420 by 300, we get 1 with a remainder of 120.
Put 1 as the next digit of the answer. 
Result so far: 1311.1
Subtract 300 from 420 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 8:
The number 300 fits into 1200 4 times, leaving a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 1311.14
Subtracting 1200 from 1200 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.

Step 9:
0 divided by 300 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1311.14
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.

Going ahead to step 10:
The number 300 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1311.14
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.

The final outcome is 1311.14, with a leftover of 0.0.