396971 divided by 80 
The aim is to understand the frequency of 80 in 396971.

Step 1:
If we divide 3 by 80, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 80

Going ahead to step 2:
The number 80 fits into 39 0 times, leaving a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Include the next digit (6) from the dividend after 39, then repeat: 396 / 80

Going ahead to step 3:
The number 80 fits into 396 4 times, leaving a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 320 from 396 to get 76.
Include the next digit (9) from the dividend after 76, then repeat: 769 / 80

Step 4:
80 can be fit into 769 9 times, resulting in a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 49.0
Deduct 720 from 769 and we're left with 49.
Append the next digit (7) from the dividend to 49 and continue with: 497 / 80

Advancing to step 5:
If we divide 497 by 80, we get 6 and a remainder of 17.
Write down 6 as next digit of the result. 
Result so far: 496.0
Subtract 480 from 497 to get 17.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 80

Let's proceed to step 6:
When dividing 171 by 80, we get 2 with a remainder of 11.
The next digit of our result is 2. 
Result so far: 4962.0
The remainder is 11 after subtracting 160 from 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
When dividing 110 by 80, we get 1 with a remainder of 30.
The next digit of our result is 1. 
Result so far: 4962.1
Deduct 80 from 110 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 8:
When dividing 300 by 80, we get 3 with a remainder of 60.
Use 3 as the next digit of our solution. 
Result so far: 4962.13
Subtract 240 from 300 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 4962.137
If we take 560 away from 600, we end up 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.

Let's proceed to step 10:
If we divide 400 by 80, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 4962.1375
Deduct 400 from 400 and we're left 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 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 4962.1375
The remainder is 0 after subtracting 0 from 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 12:
80 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4962.1375
The remainder is 0 after subtracting 0 from 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 4962.1375, and the remainder is 0.0.