We divide 72390 by 28
Let's see how many times 28 fits into 72390.

On to step 1:
The number 28 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 28

Let's proceed to step 2:
28 goes into 72 2 times with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 16 after subtracting 56 from 72.
Grab the next digit (3) from the dividend, add it to 16, then carry on: 163 / 28

Moving on to step 3:
28 goes into 163 5 times with a remainder of 23.
Use 5 as the next digit of our solution. 
Result so far: 25.0
If we subtract 140 from 163, we get 23.
Fetch the next digit (9) from the dividend, attach it to 23 and continue: 239 / 28

Moving on to step 4:
The number 28 fits into 239 8 times, leaving a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 258.0
Subtract 224 from 239 to get 15.
Grab the next digit (0) from the dividend, add it to 15, then carry on: 150 / 28

Going ahead to step 5:
The number 28 fits into 150 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 2585.0
Subtracting 140 from 150 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 6:
100 divided by 28 is 3 with a remainder of 16.
The next digit of our result is 3. 
Result so far: 2585.3
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 7:
If we divide 160 by 28, we get 5 and a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 2585.35
Subtract 140 from 160 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
28 goes into 200 7 times with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 2585.357
The remainder is 4 after subtracting 196 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
When dividing 40 by 28, we get 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 2585.3571
If we subtract 28 from 40, we 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 10:
The number 28 fits into 120 4 times, leaving a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 2585.35714
Deduct 112 from 120 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
28 goes into 80 2 times with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 2585.357142
The remainder is 24 after subtracting 56 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 12:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 2585.3571428
Subtract 224 from 240 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
The number 28 fits into 160 5 times, leaving a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 2585.35714285
Subtract 140 from 160 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 2585.35714285, with a leftover of 2e-08.