We divide 644443 by 28
Our goal is to divide 644443 by 28.

Advancing to 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
The remainder is 6 after subtracting 0 from 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 28

On to step 2:
28 can be fit into 64 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 56 away from 64, we end up with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 28

Going ahead to step 3:
84 divided by 28 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 23.0
The remainder is 0 after subtracting 84 from 84.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 28

Advancing to step 4:
When dividing 4 by 28, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 230.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 28

Let's proceed to step 5:
When dividing 44 by 28, we get 1 with a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 2301.0
If we subtract 28 from 44, we get 16.
Append the next digit (3) from the dividend to 16 and continue with: 163 / 28

On to step 6:
When dividing 163 by 28, we get 5 with a remainder of 23.
Write down 5 as next digit of the result. 
Result so far: 23015.0
Deduct 140 from 163 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
28 goes into 230 8 times with a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 23015.8
If we subtract 224 from 230, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
When dividing 60 by 28, we get 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 23015.82
Subtracting 56 from 60 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.

Moving on 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: 23015.821
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.

Let's proceed to step 10:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 23015.8214
Subtracting 112 from 120 leaves us 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 11:
When dividing 80 by 28, we get 2 with a remainder of 24.
The next digit of our result is 2. 
Result so far: 23015.82142
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.

On to step 12:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 23015.821428
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.

On to step 13:
When dividing 160 by 28, we get 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 23015.8214285
Deduct 140 from 160 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.

Moving on to step 14:
28 goes into 200 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 23015.82142857
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.

After the division, we end up with 23015.82142857 and a remainder of 4e-09.