We're dividing 360278 by 3 
The aim is to understand the frequency of 3 in 360278.

Going ahead to step 1:
3 can be fit into 3 1 times, resulting in a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 3 from 3 leaves us with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 3

Going ahead to step 2:
3 goes into 6 2 times with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we take 6 away from 6, we end up with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 3

Step 3:
If we divide 0 by 3, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 120.0
The remainder is 0 after subtracting 0 from 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 3

Moving on to step 4:
The number 3 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 1200.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 3

Step 5:
27 divided by 3 is 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 12009.0
The remainder is 0 after subtracting 27 from 27.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 3

Step 6:
3 can be fit into 8 2 times, resulting in a remainder of 2.
The next digit of our result is 2. 
Result so far: 120092.0
Subtracting 6 from 8 leaves us 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.

Advancing to step 7:
20 divided by 3 is 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 120092.6
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.

On to step 8:
If we divide 20 by 3, we get 6 and a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 120092.66
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.

The final result is 120092.66 with a remainder of 0.002.