Dividing brep by rectangle mesh

Hi, I have some troubles with dividing brep. I tried it by converting my plane to brep too and than divide. The point is, to divide this one big brep into small pieces. Any ideas?


it is not easy to answer just on screen copy, flatten input? Post script?

I dealed with it. Problem was in breb, with was closed polisurface not brep as a main shape to divide. After some changes and making solid body shape it is easy to divide into pieces