393852 ÷ 80 
The aim is to understand the frequency of 80 in 393852.

Let's proceed to step 1:
If we divide 3 by 80, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 80

Step 2:
When dividing 39 by 80, we get 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
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 / 80

Step 3:
When dividing 393 by 80, we get 4 with a remainder of 73.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 320 from 393 leaves us with 73.
Take the next digit (8) from the dividend and append it to 73, then repeat: 738 / 80

Going ahead to step 4:
If we divide 738 by 80, we get 9 and a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
Subtract 720 from 738 to get 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 80

Step 5:
80 can be fit into 185 2 times, resulting in a remainder of 25.
The next digit of our result is 2. 
Result so far: 492.0
If we take 160 away from 185, we end up with 25.
Bring next digit (2) of the dividend behind the 25 and repeat the process: 252 / 80

Let's proceed to step 6:
80 can be fit into 252 3 times, resulting in a remainder of 12.
The next digit of our result is 3. 
Result so far: 4923.0
If we subtract 240 from 252, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
When dividing 120 by 80, we get 1 with a remainder of 40.
Use 1 as the next digit of our solution. 
Result so far: 4923.1
Subtracting 80 from 120 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 4923.15
If we take 400 away from 400, we end up 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.

Going ahead to step 9:
0 divided by 80 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4923.15
Subtracting 0 from 0 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.

On to step 10:
0 divided by 80 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4923.15
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.

The quotient of the division is 4923.15, and the remainder is 0.0.