Hi Atul
I believe there is some deliminator which separates one field from other.
If that is true, write a ABAP code to split Long text into multiple fields.
Below ABAP statement would be helpful for that.
SPLIT <Your Long Text Field> AT <Deliminator> INTO F1 F2 F3 F4.
http://help.sap.com/saphelp_nw04s/helpdata/en/fc/eb33f3358411d1829f0000e829fbfe/content.htm
Cheers
Anindya