We look at the division of 43263169 by 864 
We want to figure out the number of times 43263169 can be divided by 864.

Going ahead to step 1:
864 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 864

Step 2:
864 goes into 43 0 times with a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Bring next digit (2) of the dividend behind the 43 and repeat the process: 432 / 864

Moving on to step 3:
When dividing 432 by 864, we get 0 with a remainder of 432.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 432, we get 432.
Take the next digit (6) from the dividend and append it to 432, then repeat: 4326 / 864

Moving on to step 4:
864 can be fit into 4326 5 times, resulting in a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 4320 from 4326, we get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 864

Let's proceed to step 5:
When dividing 63 by 864, we get 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 50.0
If we subtract 0 from 63, we get 63.
Append the next digit (1) from the dividend to 63 and continue with: 631 / 864

Moving on to step 6:
The number 864 fits into 631 0 times, leaving a remainder of 631.
The next digit of our result is 0. 
Result so far: 500.0
Subtracting 0 from 631 leaves us with 631.
Grab the next digit (6) from the dividend, add it to 631, then carry on: 6316 / 864

Advancing to step 7:
864 goes into 6316 7 times with a remainder of 268.
Write down 7 as next digit of the result. 
Result so far: 5007.0
Deduct 6048 from 6316 and we're left with 268.
Grab the next digit (9) from the dividend, add it to 268, then carry on: 2689 / 864

Let's proceed to step 8:
If we divide 2689 by 864, we get 3 and a remainder of 97.
The number 3 becomes the next digit in our result. 
Result so far: 50073.0
The remainder is 97 after subtracting 2592 from 2689.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Let's proceed to step 9:
864 can be fit into 970 1 times, resulting in a remainder of 106.
Put 1 as the next digit of the answer. 
Result so far: 50073.1
If we take 864 away from 970, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 10:
1060 divided by 864 is 1 with a remainder of 196.
Record the quotient 1 as the next digit in the result. 
Result so far: 50073.11
Deduct 864 from 1060 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

After the division, we end up with 50073.11 and a remainder of 0.196.