We look at the division of 11721127 by 864 
Let's see how many times 864 fits into 11721127.

Let's proceed to step 1:
864 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 864

Going ahead to step 2:
The number 864 fits into 11 0 times, leaving a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 11 after subtracting 0 from 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 864

Moving on to step 3:
864 can be fit into 117 0 times, resulting in a remainder of 117.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 117 after subtracting 0 from 117.
Append the next digit (2) from the dividend to 117 and continue with: 1172 / 864

Advancing to step 4:
When dividing 1172 by 864, we get 1 with a remainder of 308.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 864 away from 1172, we end up with 308.
Grab the next digit (1) from the dividend, add it to 308, then carry on: 3081 / 864

Step 5:
864 can be fit into 3081 3 times, resulting in a remainder of 489.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtracting 2592 from 3081 leaves us with 489.
Append the next digit (1) from the dividend to 489 and continue with: 4891 / 864

Let's proceed to step 6:
864 goes into 4891 5 times with a remainder of 571.
Put 5 as the next digit of the answer. 
Result so far: 135.0
Deduct 4320 from 4891 and we're left with 571.
Include the next digit (2) from the dividend after 571, then repeat: 5712 / 864

Advancing to step 7:
When dividing 5712 by 864, we get 6 with a remainder of 528.
Put 6 as the next digit of the answer. 
Result so far: 1356.0
The remainder is 528 after subtracting 5184 from 5712.
Fetch the next digit (7) from the dividend, attach it to 528 and continue: 5287 / 864

On to step 8:
If we divide 5287 by 864, we get 6 and a remainder of 103.
The next digit of our result is 6. 
Result so far: 13566.0
Subtract 5184 from 5287 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

On to step 9:
864 goes into 1030 1 times with a remainder of 166.
Write down 1 as next digit of the result. 
Result so far: 13566.1
Subtracting 864 from 1030 leaves us with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 10:
1660 divided by 864 is 1 with a remainder of 796.
Record the quotient 1 as the next digit in the result. 
Result so far: 13566.11
If we take 864 away from 1660, we end up with 796.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7960, and continue the process.

In conclusion, the division gives 13566.11 with a balance of 0.796.