30156551 ÷ 864 
We want to divide 30156551 by 864.

Going ahead to step 1:
The number 864 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 864

Moving on to step 2:
864 can be fit into 30 0 times, resulting in a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Fetch the next digit (1) from the dividend, attach it to 30 and continue: 301 / 864

Let's proceed to step 3:
864 can be fit into 301 0 times, resulting in a remainder of 301.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 301 and we're left with 301.
Grab the next digit (5) from the dividend, add it to 301, then carry on: 3015 / 864

Let's proceed to step 4:
3015 divided by 864 is 3 with a remainder of 423.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 423 after subtracting 2592 from 3015.
Include the next digit (6) from the dividend after 423, then repeat: 4236 / 864

On to step 5:
864 goes into 4236 4 times with a remainder of 780.
Write down 4 as next digit of the result. 
Result so far: 34.0
Deduct 3456 from 4236 and we're left with 780.
Grab the next digit (5) from the dividend, add it to 780, then carry on: 7805 / 864

Moving on to step 6:
7805 divided by 864 is 9 with a remainder of 29.
Write down 9 as next digit of the result. 
Result so far: 349.0
If we subtract 7776 from 7805, we get 29.
Bring next digit (5) of the dividend behind the 29 and repeat the process: 295 / 864

Going ahead to step 7:
The number 864 fits into 295 0 times, leaving a remainder of 295.
Put 0 as the next digit of the answer. 
Result so far: 3490.0
If we take 0 away from 295, we end up with 295.
Grab the next digit (1) from the dividend, add it to 295, then carry on: 2951 / 864

On to step 8:
The number 864 fits into 2951 3 times, leaving a remainder of 359.
Record the quotient 3 as the next digit in the result. 
Result so far: 34903.0
The remainder is 359 after subtracting 2592 from 2951.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Step 9:
864 goes into 3590 4 times with a remainder of 134.
Write down 4 as next digit of the result. 
Result so far: 34903.4
Subtracting 3456 from 3590 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Moving on to step 10:
When dividing 1340 by 864, we get 1 with a remainder of 476.
Write down 1 as next digit of the result. 
Result so far: 34903.41
The remainder is 476 after subtracting 864 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Moving on to step 11:
When dividing 4760 by 864, we get 5 with a remainder of 440.
Record the quotient 5 as the next digit in the result. 
Result so far: 34903.415
Subtract 4320 from 4760 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 12:
4400 divided by 864 is 5 with a remainder of 80.
The number 5 becomes the next digit in our result. 
Result so far: 34903.4155
Subtracting 4320 from 4400 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 34903.4155, with a leftover of 0.0008.