840302 ÷ 28 
We're looking to find how many times 28 goes into 840302.

Going ahead to step 1:
If we divide 8 by 28, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 28

Moving on to step 2:
84 divided by 28 is 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 84 from 84 to get 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 28

Advancing to step 3:
If we divide 0 by 28, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Subtracting 0 from 0 leaves us with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 28

Let's proceed to step 4:
28 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 300.0
Subtract 0 from 3 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 28

Going ahead to step 5:
If we divide 30 by 28, we get 1 and a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 3001.0
If we subtract 28 from 30, we get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 28

Going ahead to step 6:
22 divided by 28 is 0 with a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 30010.0
Subtracting 0 from 22 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 7:
If we divide 220 by 28, we get 7 and a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 30010.7
If we subtract 196 from 220, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 8:
If we divide 240 by 28, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 30010.78
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.

Let's proceed to step 9:
If we divide 160 by 28, we get 5 and a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 30010.785
The remainder is 20 after subtracting 140 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 30010.7857
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.

Advancing to step 11:
When dividing 40 by 28, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 30010.78571
If we take 28 away from 40, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 12:
If we divide 120 by 28, we get 4 and a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 30010.785714
Subtract 112 from 120 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
28 can be fit into 80 2 times, resulting in a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 30010.7857142
Subtract 56 from 80 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 14:
If we divide 240 by 28, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 30010.78571428
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.

In conclusion, the division gives 30010.78571428 with a balance of 1.6e-08.