Pull Out Manufacturer Number

I have a spreadsheet that has item names and then at the end the manufacturer number. I'd want to find way cut that manufacturer number off the end and move it to its own column.

I pasted some examples below of what it looks like. It is just coincidence that the items below all that the same length...they are all of varying lengths. The one thing they all have in common is that it the last thing in the cell and seperated by a space. I would think there would be a way to find the last space in the cell and cut everything to the right of that. I can do it in a macro if necessary, but where to start.

AVENGERS FIGURE ASST 3 75 A1816
AVENGERS HULK HANDS A1827
AVENGERS SLAMMERS A1822
BATMAN BATMOBILE Y1258
BATMAN DK KNIGHT FIGURE ASST Y7572
BATMAN FIG N VEHICLE ASST Y1252