Let's divide 395191 by 80
The aim is to understand the frequency of 80 in 395191.

Let's proceed to step 1:
3 divided by 80 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 80

Going ahead to step 2:
80 goes into 39 0 times with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Grab the next digit (5) from the dividend, add it to 39, then carry on: 395 / 80

Advancing to step 3:
395 divided by 80 is 4 with a remainder of 75.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 320 from 395 and we're left with 75.
Grab the next digit (1) from the dividend, add it to 75, then carry on: 751 / 80

Let's proceed to step 4:
When dividing 751 by 80, we get 9 with a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 49.0
The remainder is 31 after subtracting 720 from 751.
Fetch the next digit (9) from the dividend, attach it to 31 and continue: 319 / 80

Going ahead to step 5:
80 can be fit into 319 3 times, resulting in a remainder of 79.
Use 3 as the next digit of our solution. 
Result so far: 493.0
The remainder is 79 after subtracting 240 from 319.
Bring next digit (1) of the dividend behind the 79 and repeat the process: 791 / 80

Going ahead to step 6:
The number 80 fits into 791 9 times, leaving a remainder of 71.
The next digit of our result is 9. 
Result so far: 4939.0
If we take 720 away from 791, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 7:
When dividing 710 by 80, we get 8 with a remainder of 70.
The next digit of our result is 8. 
Result so far: 4939.8
If we subtract 640 from 710, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
If we divide 700 by 80, we get 8 and a remainder of 60.
The next digit of our result is 8. 
Result so far: 4939.88
The remainder is 60 after subtracting 640 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 4939.88 and a remainder of 0.06.