We're dividing 389790 by 28 
Our goal is to divide 389790 by 28.

Moving on to 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
The remainder is 3 after subtracting 0 from 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 28

On to step 2:
28 can be fit into 38 1 times, resulting in a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 28 from 38 to get 10.
Append the next digit (9) from the dividend to 10 and continue with: 109 / 28

On to step 3:
If we divide 109 by 28, we get 3 and a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we subtract 84 from 109, we get 25.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 28

Let's proceed to step 4:
The number 28 fits into 257 9 times, leaving a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 139.0
Deduct 252 from 257 and we're left with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 28

On to step 5:
If we divide 59 by 28, we get 2 and a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 1392.0
Subtracting 56 from 59 leaves us with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 28

On to step 6:
28 goes into 30 1 times with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 13921.0
Subtracting 28 from 30 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
If we divide 20 by 28, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 13921.0
Deduct 0 from 20 and we're left 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.

Let's proceed to step 8:
If we divide 200 by 28, we get 7 and a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 13921.07
If we take 196 away from 200, we end up 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.

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: 13921.071
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.

Step 10:
If we divide 120 by 28, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 13921.0714
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 11:
The number 28 fits into 80 2 times, leaving a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 13921.07142
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.

Let's proceed to step 12:
28 goes into 240 8 times with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 13921.071428
If we take 224 away from 240, we end up 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.

Step 13:
If we divide 160 by 28, we get 5 and a remainder of 20.
The next digit of our result is 5. 
Result so far: 13921.0714285
If we subtract 140 from 160, we 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.

Step 14:
28 goes into 200 7 times with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 13921.07142857
Subtract 196 from 200 to 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.

Our division results in 13921.07142857 with a remaining 4e-09.