coverity#1157790 Division or modulo by float zero
coverity#1157790 Division or modulo by float zero

Change-Id: I98ada1d4ccae0b804a6a083cdd0ab185c556ad71

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core