We divide 343164 by 80
We want to divide 343164 by 80.

Moving on to step 1:
3 divided by 80 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 80

Moving on to step 2:
If we divide 34 by 80, we get 0 and a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 34 to get 34.
Fetch the next digit (3) from the dividend, attach it to 34 and continue: 343 / 80

Advancing to step 3:
80 can be fit into 343 4 times, resulting in a remainder of 23.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 320 from 343, we get 23.
Include the next digit (1) from the dividend after 23, then repeat: 231 / 80

Let's proceed to step 4:
If we divide 231 by 80, we get 2 and a remainder of 71.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
Subtract 160 from 231 to get 71.
Bring next digit (6) of the dividend behind the 71 and repeat the process: 716 / 80

Moving on to step 5:
When dividing 716 by 80, we get 8 with a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 428.0
Subtract 640 from 716 to get 76.
Include the next digit (4) from the dividend after 76, then repeat: 764 / 80

Moving on to step 6:
When dividing 764 by 80, we get 9 with a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 4289.0
If we subtract 720 from 764, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 7:
The number 80 fits into 440 5 times, leaving a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 4289.5
The remainder is 40 after subtracting 400 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
The number 80 fits into 400 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 4289.55
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.

The quotient of the division is 4289.55, and the remainder is 0.0.