Let's divide 396521 by 2
We want to figure out the number of times 396521 can be divided by 2.

Step 1:
When dividing 3 by 2, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 2 away from 3, we end up with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 2

Let's proceed to step 2:
19 divided by 2 is 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 19.0
Subtract 18 from 19 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 2

Step 3:
When dividing 16 by 2, we get 8 with a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 198.0
Subtract 16 from 16 to get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 2

Step 4:
2 goes into 5 2 times with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 1982.0
If we take 4 away from 5, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 2

Let's proceed to step 5:
2 goes into 12 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 19826.0
Subtract 12 from 12 to get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 2

Advancing to step 6:
When dividing 1 by 2, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 198260.0
Deduct 0 from 1 and we're left 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.

Moving on to step 7:
2 can be fit into 10 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 198260.5
Subtracting 10 from 10 leaves us 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.

Advancing to step 8:
The number 2 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 198260.5
If we subtract 0 from 0, we 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 9:
If we divide 0 by 2, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 198260.5
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.

The final result is 198260.5 with a remainder of 0.0.