703849 divided by 80 
The aim is to understand the frequency of 80 in 703849.

Going ahead to step 1:
7 divided by 80 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 80

Step 2:
If we divide 70 by 80, we get 0 and a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 70 after subtracting 0 from 70.
Fetch the next digit (3) from the dividend, attach it to 70 and continue: 703 / 80

On to step 3:
If we divide 703 by 80, we get 8 and a remainder of 63.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 640 from 703 and we're left with 63.
Include the next digit (8) from the dividend after 63, then repeat: 638 / 80

Step 4:
If we divide 638 by 80, we get 7 and a remainder of 78.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Deduct 560 from 638 and we're left with 78.
Append the next digit (4) from the dividend to 78 and continue with: 784 / 80

Let's proceed to step 5:
80 can be fit into 784 9 times, resulting in a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 879.0
The remainder is 64 after subtracting 720 from 784.
Take the next digit (9) from the dividend and append it to 64, then repeat: 649 / 80

Moving on to step 6:
If we divide 649 by 80, we get 8 and a remainder of 9.
The number 8 becomes the next digit in our result. 
Result so far: 8798.0
If we take 640 away from 649, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
If we divide 90 by 80, we get 1 and a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 8798.1
Deduct 80 from 90 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
When dividing 100 by 80, we get 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 8798.11
Deduct 80 from 100 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 8798.11 with a remainder of 0.02.