Let's divide 340939 by 80
Let's see how many times 80 fits into 340939.

Going ahead to step 1:
If we divide 3 by 80, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 80

Advancing to step 2:
When dividing 34 by 80, we get 0 with a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Append the next digit (0) from the dividend to 34 and continue with: 340 / 80

On to step 3:
80 can be fit into 340 4 times, resulting in a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 320 from 340 and we're left with 20.
Fetch the next digit (9) from the dividend, attach it to 20 and continue: 209 / 80

Let's proceed to step 4:
209 divided by 80 is 2 with a remainder of 49.
Use 2 as the next digit of our solution. 
Result so far: 42.0
If we subtract 160 from 209, we get 49.
Bring next digit (3) of the dividend behind the 49 and repeat the process: 493 / 80

Let's proceed to step 5:
When dividing 493 by 80, we get 6 with a remainder of 13.
Put 6 as the next digit of the answer. 
Result so far: 426.0
Deduct 480 from 493 and we're left with 13.
Include the next digit (9) from the dividend after 13, then repeat: 139 / 80

Moving on to step 6:
80 goes into 139 1 times with a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 4261.0
Subtracting 80 from 139 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 7:
When dividing 590 by 80, we get 7 with a remainder of 30.
Use 7 as the next digit of our solution. 
Result so far: 4261.7
Subtract 560 from 590 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
When dividing 300 by 80, we get 3 with a remainder of 60.
The next digit of our result is 3. 
Result so far: 4261.73
Subtracting 240 from 300 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.

Step 9:
80 can be fit into 600 7 times, resulting in a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 4261.737
The remainder is 40 after subtracting 560 from 600.
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:
80 goes into 400 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4261.7375
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.

On to step 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4261.7375
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.

On to step 12:
If we divide 0 by 80, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4261.7375
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 4261.7375, with a leftover of 0.0.