We look at the division of 343881 by 80 
Our goal is to divide 343881 by 80.

Moving on to step 1:
The number 80 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 80

Going ahead to step 2:
When dividing 34 by 80, we get 0 with a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Take the next digit (3) from the dividend and append it to 34, then repeat: 343 / 80

Going ahead to step 3:
The number 80 fits into 343 4 times, leaving a remainder of 23.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 320 from 343 and we're left with 23.
Include the next digit (8) from the dividend after 23, then repeat: 238 / 80

Advancing to step 4:
238 divided by 80 is 2 with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtract 160 from 238 to get 78.
Fetch the next digit (8) from the dividend, attach it to 78 and continue: 788 / 80

Advancing to step 5:
If we divide 788 by 80, we get 9 and a remainder of 68.
Write down 9 as next digit of the result. 
Result so far: 429.0
The remainder is 68 after subtracting 720 from 788.
Fetch the next digit (1) from the dividend, attach it to 68 and continue: 681 / 80

Step 6:
When dividing 681 by 80, we get 8 with a remainder of 41.
Use 8 as the next digit of our solution. 
Result so far: 4298.0
Deduct 640 from 681 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 7:
410 divided by 80 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 4298.5
Deduct 400 from 410 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.

Advancing to step 8:
If we divide 100 by 80, we get 1 and a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 4298.51
Subtract 80 from 100 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 4298.512
Subtracting 160 from 200 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.

Going ahead to step 10:
When dividing 400 by 80, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4298.5125
The remainder is 0 after subtracting 400 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4298.5125
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.

Advancing to step 12:
If we divide 0 by 80, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4298.5125
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.

Our division results in 4298.5125 with a remaining 0.0.