864289 ÷ 43 
We're looking to find how many times 43 goes into 864289.

Let's proceed to step 1:
8 divided by 43 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 43

On to step 2:
The number 43 fits into 86 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 0 after subtracting 86 from 86.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 43

Let's proceed to step 3:
43 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we subtract 0 from 4, we get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 43

Going ahead to step 4:
When dividing 42 by 43, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 200.0
Subtracting 0 from 42 leaves us with 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 43

Step 5:
When dividing 428 by 43, we get 9 with a remainder of 41.
Put 9 as the next digit of the answer. 
Result so far: 2009.0
Deduct 387 from 428 and we're left with 41.
Grab the next digit (9) from the dividend, add it to 41, then carry on: 419 / 43

On to step 6:
43 goes into 419 9 times with a remainder of 32.
Put 9 as the next digit of the answer. 
Result so far: 20099.0
Subtract 387 from 419 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 7:
43 goes into 320 7 times with a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 20099.7
Subtract 301 from 320 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 8:
43 can be fit into 190 4 times, resulting in a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 20099.74
Subtract 172 from 190 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 9:
When dividing 180 by 43, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 20099.744
If we subtract 172 from 180, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 20099.744 with a remainder of 0.0008.