680391 ÷ 43 
Our goal is to divide 680391 by 43.

On to step 1:
6 divided by 43 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 43

Moving on to step 2:
43 can be fit into 68 1 times, resulting in a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 25 after subtracting 43 from 68.
Grab the next digit (0) from the dividend, add it to 25, then carry on: 250 / 43

Step 3:
The number 43 fits into 250 5 times, leaving a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtracting 215 from 250 leaves us with 35.
Take the next digit (3) from the dividend and append it to 35, then repeat: 353 / 43

Let's proceed to step 4:
The number 43 fits into 353 8 times, leaving a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 158.0
Subtracting 344 from 353 leaves us with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 43

Step 5:
43 can be fit into 99 2 times, resulting in a remainder of 13.
Use 2 as the next digit of our solution. 
Result so far: 1582.0
Subtracting 86 from 99 leaves us with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 43

Advancing to step 6:
43 goes into 131 3 times with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 15823.0
If we take 129 away from 131, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
20 divided by 43 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 15823.0
Subtracting 0 from 20 leaves us 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.

Going ahead to step 8:
200 divided by 43 is 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 15823.04
If we take 172 away from 200, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
280 divided by 43 is 6 with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 15823.046
If we subtract 258 from 280, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 10:
220 divided by 43 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 15823.0465
If we take 215 away from 220, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 11:
The number 43 fits into 50 1 times, leaving a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 15823.04651
If we take 43 away from 50, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 12:
The number 43 fits into 70 1 times, leaving a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 15823.046511
If we take 43 away from 70, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The quotient of the division is 15823.046511, and the remainder is 2.7e-06.