This command would destroy a Trade good that you are currently holding and will generate a few objects related to the original Trade good so you can use use or sell them to others characters, the sum of the value of all the objects generated shouldn't be higher than the value of the trade good.
Divide seafood -> It will destroy the barrel but you will get several fishes
able to be cooked or eated.
Divide pearls -> It will destroy the bag but you will get some pearls that
could be used as components
Divide wood -> It will destroy the plank but you will get usable wood.