We look at the division of 451379 by 2 
We want to figure out the number of times 451379 can be divided by 2.

Let's proceed to step 1:
2 goes into 4 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 4 away from 4, we end up with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 2

Moving on to step 2:
The number 2 fits into 5 2 times, leaving a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we take 4 away from 5, we end up with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 2

On to step 3:
If we divide 11 by 2, we get 5 and a remainder of 1.
The next digit of our result is 5. 
Result so far: 225.0
Deduct 10 from 11 and we're left with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 2

Advancing to step 4:
2 can be fit into 13 6 times, resulting in a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 2256.0
If we subtract 12 from 13, we get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 2

Let's proceed to step 5:
2 can be fit into 17 8 times, resulting in a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 22568.0
The remainder is 1 after subtracting 16 from 17.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 2

Moving on to step 6:
If we divide 19 by 2, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 225689.0
Subtracting 18 from 19 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.

Let's proceed to step 7:
10 divided by 2 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 225689.5
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.

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: 225689.5
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.

On to step 9:
2 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 225689.5
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.

The final result is 225689.5 with a remainder of 0.0.