I need to break a field out into separate columns based on where the "-" appears in the source field.

example:

FROM THIS

Source field:
236-III-C-1
F-6-2
399-B-12-1
370-B-11

TO THIS

Lot field
236
F
399
370

Section field
III
6
B
B

Division field
C
blank
12
11

Marker field
1
blank
1
blank

How would I do this?