We divide 436991 by 2
We want to figure out the number of times 436991 can be divided by 2.

Advancing to step 1:
2 can be fit into 4 2 times, resulting in a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 4 away from 4, we end up with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 2

Let's proceed to step 2:
The number 2 fits into 3 1 times, leaving a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 2 away from 3, we end up with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 2

Let's proceed to step 3:
When dividing 16 by 2, we get 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 218.0
If we take 16 away from 16, we end up with 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 2

Let's proceed to step 4:
2 goes into 9 4 times with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 2184.0
If we subtract 8 from 9, we get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 2

Advancing to step 5:
2 can be fit into 19 9 times, resulting in a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 21849.0
If we take 18 away from 19, we end up with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 2

On to step 6:
If we divide 11 by 2, we get 5 and a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 218495.0
The remainder is 1 after subtracting 10 from 11.
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 number 5 becomes the next digit in our result. 
Result so far: 218495.5
If we take 10 away from 10, 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.

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: 218495.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
2 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 218495.5
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.

Our division results in 218495.5 with a remaining 0.0.