402409 divided by 43 
Our goal is to divide 402409 by 43.

Step 1:
43 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 43

Let's proceed to step 2:
If we divide 40 by 43, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 40 leaves us with 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 43

Advancing to step 3:
If we divide 402 by 43, we get 9 and a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 387 from 402, we get 15.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 43

Step 4:
43 can be fit into 154 3 times, resulting in a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 93.0
If we take 129 away from 154, we end up with 25.
Append the next digit (0) from the dividend to 25 and continue with: 250 / 43

On to step 5:
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: 935.0
If we subtract 215 from 250, we get 35.
Grab the next digit (9) from the dividend, add it to 35, then carry on: 359 / 43

Going ahead to step 6:
43 goes into 359 8 times with a remainder of 15.
Write down 8 as next digit of the result. 
Result so far: 9358.0
If we subtract 344 from 359, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
43 goes into 150 3 times with a remainder of 21.
The next digit of our result is 3. 
Result so far: 9358.3
If we subtract 129 from 150, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 8:
210 divided by 43 is 4 with a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 9358.34
If we take 172 away from 210, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 9:
43 can be fit into 380 8 times, resulting in a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 9358.348
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
The number 43 fits into 360 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 9358.3488
Deduct 344 from 360 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 9358.3488 with a remaining 0.00016.