We divide 189863 by 80
The aim is to understand the frequency of 80 in 189863.

Let's proceed to step 1:
If we divide 1 by 80, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 80

Moving on to step 2:
If we divide 18 by 80, we get 0 and a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Take the next digit (9) from the dividend and append it to 18, then repeat: 189 / 80

Advancing to step 3:
If we divide 189 by 80, we get 2 and a remainder of 29.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 160 from 189 to get 29.
Bring next digit (8) of the dividend behind the 29 and repeat the process: 298 / 80

Advancing to step 4:
The number 80 fits into 298 3 times, leaving a remainder of 58.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we subtract 240 from 298, we get 58.
Fetch the next digit (6) from the dividend, attach it to 58 and continue: 586 / 80

On to step 5:
The number 80 fits into 586 7 times, leaving a remainder of 26.
The next digit of our result is 7. 
Result so far: 237.0
Deduct 560 from 586 and we're left with 26.
Include the next digit (3) from the dividend after 26, then repeat: 263 / 80

Advancing to step 6:
If we divide 263 by 80, we get 3 and a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 2373.0
If we subtract 240 from 263, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 7:
If we divide 230 by 80, we get 2 and a remainder of 70.
Record the quotient 2 as the next digit in the result. 
Result so far: 2373.2
The remainder is 70 after subtracting 160 from 230.
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.
Put 8 as the next digit of the answer. 
Result so far: 2373.28
Subtracting 640 from 700 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 9:
600 divided by 80 is 7 with a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 2373.287
Subtracting 560 from 600 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 10:
400 divided by 80 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 2373.2875
If we subtract 400 from 400, 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.

Advancing to step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2373.2875
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.

Advancing to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 2373.2875
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 final outcome is 2373.2875, with a leftover of 0.0.