Let's divide 445243 by 2
We want to figure out the number of times 445243 can be divided by 2.

On to step 1:
The number 2 fits into 4 2 times, leaving a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 4 from 4 to get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 2

Step 2:
2 goes into 4 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Subtract 4 from 4 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 2

Going ahead to step 3:
5 divided by 2 is 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 222.0
If we subtract 4 from 5, we get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 2

Moving on to step 4:
12 divided by 2 is 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 2226.0
If we take 12 away from 12, we end up with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 2

Advancing to step 5:
2 can be fit into 4 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 22262.0
Deduct 4 from 4 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 2

Going ahead to step 6:
3 divided by 2 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 222621.0
Subtract 2 from 3 to get 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 7:
The number 2 fits into 10 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 222621.5
Subtract 10 from 10 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
When dividing 0 by 2, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 222621.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 222621.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 222621.5 and a remainder of 0.0.