Let's divide 830400 by 28
We're looking to find how many times 28 goes into 830400.

On to step 1:
28 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 28

Let's proceed to step 2:
If we divide 83 by 28, we get 2 and a remainder of 27.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 56 from 83 to get 27.
Fetch the next digit (0) from the dividend, attach it to 27 and continue: 270 / 28

Let's proceed to step 3:
The number 28 fits into 270 9 times, leaving a remainder of 18.
The next digit of our result is 9. 
Result so far: 29.0
Deduct 252 from 270 and we're left with 18.
Take the next digit (4) from the dividend and append it to 18, then repeat: 184 / 28

Going ahead to step 4:
When dividing 184 by 28, we get 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 296.0
Subtract 168 from 184 to get 16.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 28

On to step 5:
If we divide 160 by 28, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 2965.0
The remainder is 20 after subtracting 140 from 160.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 28

Advancing to step 6:
When dividing 200 by 28, we get 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 29657.0
Subtracting 196 from 200 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
If we divide 40 by 28, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 29657.1
The remainder is 12 after subtracting 28 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
28 goes into 120 4 times with a remainder of 8.
The next digit of our result is 4. 
Result so far: 29657.14
If we subtract 112 from 120, we 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.

Going ahead to step 9:
80 divided by 28 is 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 29657.142
If we take 56 away from 80, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 29657.1428
Subtracting 224 from 240 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
28 can be fit into 160 5 times, resulting in a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 29657.14285
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.

Step 12:
28 can be fit into 200 7 times, resulting in a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 29657.142857
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.

Going ahead to step 13:
40 divided by 28 is 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 29657.1428571
Deduct 28 from 40 and we're left 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.

On to step 14:
When dividing 120 by 28, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 29657.14285714
If we subtract 112 from 120, we 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.

Our division results in 29657.14285714 with a remaining 8e-09.