864003 ÷ 72 
We want to figure out the number of times 864003 can be divided by 72.

Moving on to step 1:
If we divide 8 by 72, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 72

Moving on to step 2:
72 can be fit into 86 1 times, resulting in a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 72 from 86 to get 14.
Grab the next digit (4) from the dividend, add it to 14, then carry on: 144 / 72

Going ahead to step 3:
72 goes into 144 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 144 from 144, we get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 72

Advancing to step 4:
0 divided by 72 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 120.0
Subtracting 0 from 0 leaves us with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 72

Going ahead to step 5:
0 divided by 72 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1200.0
If we subtract 0 from 0, we get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 72

On to step 6:
3 divided by 72 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 12000.0
The remainder is 3 after subtracting 0 from 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
72 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 12000.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
If we divide 300 by 72, we get 4 and a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 12000.04
Subtract 288 from 300 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 9:
The number 72 fits into 120 1 times, leaving a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 12000.041
Subtracting 72 from 120 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 10:
480 divided by 72 is 6 with a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 12000.0416
If we subtract 432 from 480, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
If we divide 480 by 72, we get 6 and a remainder of 48.
The next digit of our result is 6. 
Result so far: 12000.04166
Subtract 432 from 480 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final result is 12000.04166 with a remainder of 4.8e-05.