in both base 10, and base 2 (binary) the place of the digit matters, and it works like this
base 10
1000's 100's 10's 1's
5 3 2 4
That number is 5 x 1000, 3 x 100, 2 x 10, and 4 x 1.
Binary is the same idea only you go up in powers of 2 not 10
128's 64's 32's 16's 8's 4's 2's 1's
1 0 1 1 0 1 1 1
That number equals 1 x 128 plus 1 x 32 plus 1 x 16 plus 1 x 4 plus 1 x 2 plus 1 x 1.
Squall, can you work it out?