28243507 divided by 642 
Our goal is to divide 28243507 by 642.

Moving on to step 1:
When dividing 2 by 642, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 642

Advancing to step 2:
The number 642 fits into 28 0 times, leaving a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 28 leaves us with 28.
Fetch the next digit (2) from the dividend, attach it to 28 and continue: 282 / 642

Going ahead to step 3:
282 divided by 642 is 0 with a remainder of 282.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 282, we get 282.
Append the next digit (4) from the dividend to 282 and continue with: 2824 / 642

Going ahead to step 4:
The number 642 fits into 2824 4 times, leaving a remainder of 256.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 256 after subtracting 2568 from 2824.
Bring next digit (3) of the dividend behind the 256 and repeat the process: 2563 / 642

Let's proceed to step 5:
642 goes into 2563 3 times with a remainder of 637.
Put 3 as the next digit of the answer. 
Result so far: 43.0
If we subtract 1926 from 2563, we get 637.
Append the next digit (5) from the dividend to 637 and continue with: 6375 / 642

Advancing to step 6:
The number 642 fits into 6375 9 times, leaving a remainder of 597.
Write down 9 as next digit of the result. 
Result so far: 439.0
If we subtract 5778 from 6375, we get 597.
Append the next digit (0) from the dividend to 597 and continue with: 5970 / 642

Step 7:
If we divide 5970 by 642, we get 9 and a remainder of 192.
Use 9 as the next digit of our solution. 
Result so far: 4399.0
If we take 5778 away from 5970, we end up with 192.
Take the next digit (7) from the dividend and append it to 192, then repeat: 1927 / 642

Step 8:
When dividing 1927 by 642, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 43993.0
Subtracting 1926 from 1927 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
If we divide 10 by 642, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 43993.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
When dividing 100 by 642, we get 0 with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 43993.0
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 43993.0, with a leftover of 0.1.