Avoid dividing by 0.
Avoid dividing by 0.

Change-Id: Iab1bd0dbe28403a6063a681f11c282b7f15ce7b6

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