We're dividing 856464 by 2 
We want to figure out the number of times 856464 can be divided by 2.

Let's proceed to step 1:
8 divided by 2 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 8 from 8 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 2

On to step 2:
5 divided by 2 is 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtract 4 from 5 to get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 2

Moving on to step 3:
If we divide 16 by 2, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 428.0
The remainder is 0 after subtracting 16 from 16.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 2

Step 4:
2 goes into 4 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 4282.0
Deduct 4 from 4 and we're left with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 2

On to step 5:
When dividing 6 by 2, we get 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 42823.0
The remainder is 0 after subtracting 6 from 6.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 2

Going ahead to step 6:
If we divide 4 by 2, we get 2 and a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 428232.0
The remainder is 0 after subtracting 4 from 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
2 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 428232.0
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.

Let's proceed to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 428232.0
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.

The final outcome is 428232.0, with a leftover of 0.0.