We're dividing 638144 by 28 
Our goal is to divide 638144 by 28.

Step 1:
The number 28 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 28

Moving on to step 2:
The number 28 fits into 63 2 times, leaving a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 56 from 63 leaves us with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 28

Moving on to step 3:
28 goes into 78 2 times with a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we take 56 away from 78, we end up with 22.
Append the next digit (1) from the dividend to 22 and continue with: 221 / 28

Step 4:
221 divided by 28 is 7 with a remainder of 25.
The next digit of our result is 7. 
Result so far: 227.0
Subtracting 196 from 221 leaves us with 25.
Bring next digit (4) of the dividend behind the 25 and repeat the process: 254 / 28

Advancing to step 5:
28 can be fit into 254 9 times, resulting in a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 2279.0
The remainder is 2 after subtracting 252 from 254.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 28

Step 6:
If we divide 24 by 28, we get 0 and a remainder of 24.
The number 0 becomes the next digit in our result. 
Result so far: 22790.0
The remainder is 24 after subtracting 0 from 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 7:
240 divided by 28 is 8 with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 22790.8
Deduct 224 from 240 and we're left 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.

Going ahead to step 8:
When dividing 160 by 28, we get 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 22790.85
If we take 140 away from 160, we end up 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 9:
28 goes into 200 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 22790.857
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.

Step 10:
28 can be fit into 40 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 22790.8571
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.

Going ahead to step 11:
120 divided by 28 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 22790.85714
If we take 112 away from 120, we end up 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.

Going ahead to step 12:
80 divided by 28 is 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 22790.857142
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 13:
240 divided by 28 is 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 22790.8571428
If we subtract 224 from 240, we 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.

Moving on to step 14:
The number 28 fits into 160 5 times, leaving a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 22790.85714285
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.

The final outcome is 22790.85714285, with a leftover of 2e-08.