coverity#982431 Division or modulo by float zero
coverity#982431 Division or modulo by float zero

Change-Id: Icb43cae170b8ca5dc3ef3379136d265869eb978e

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