First I'm not very familiar with Excel

Heres my question:

I have about 300 rows of numbers in 1 column (A) on Excel 2007

Looks like:

0A08EC

0A0902

0A52A6

0A52BA

0A52D0

I need to insert the following between each number and aside from copy and pasting I have no idea how to do this:

(blank)

M

82

(blank)

(blank)

(blank)

X

Any help will be greatly appreciated thanks.