Try DEC2 then try DEC3 to see what the command does.
Then take a look at DIG
4.17.7. DIG

DIG returns the value of a decimal digit. Simply tell it the digit number (0 - 4 with 0 being the rightmost digit) you would like the value of, and voila.

B0 = 123 ' Set B0 to 123
B1 = B0 DIG 1 ' Sets B1 to 2 (digit 1 of 123)
Add a DIG statement to your code to "pull" the DIGit you want.