We're dividing 389310 by 28 
Our goal is to divide 389310 by 28.

Step 1:
If we divide 3 by 28, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 28

Step 2:
The number 28 fits into 38 1 times, leaving a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 28 away from 38, we end up with 10.
Fetch the next digit (9) from the dividend, attach it to 10 and continue: 109 / 28

Step 3:
28 can be fit into 109 3 times, resulting in a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 84 from 109 and we're left with 25.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 28

Advancing to step 4:
When dividing 253 by 28, we get 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 139.0
If we take 252 away from 253, we end up with 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 28

On to step 5:
28 can be fit into 11 0 times, resulting in a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 1390.0
If we subtract 0 from 11, we get 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 28

Step 6:
The number 28 fits into 110 3 times, leaving a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 13903.0
Subtract 84 from 110 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 7:
The number 28 fits into 260 9 times, leaving a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 13903.9
The remainder is 8 after subtracting 252 from 260.
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 8:
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: 13903.92
If we subtract 56 from 80, 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.

Advancing to step 9:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 13903.928
The remainder is 16 after subtracting 224 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 10:
160 divided by 28 is 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 13903.9285
Subtracting 140 from 160 leaves us with 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 11:
28 can be fit into 200 7 times, resulting in a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 13903.92857
If we subtract 196 from 200, we get 4.
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 12:
The number 28 fits into 40 1 times, leaving a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 13903.928571
Subtract 28 from 40 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.

On to step 13:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 13903.9285714
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.

Step 14:
If we divide 80 by 28, we get 2 and a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 13903.92857142
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.

The final outcome is 13903.92857142, with a leftover of 2.4e-08.