Division or modulo by zero

The program will have undefined behavior, likely a crash. Division or modulo by zero results in undefined behavior.
/src/mongo/db/catalog/multi_index_block.cpp:782: DIVIDE_BY_ZERO 122493 Assigning: "kYieldIterations" = "this->isBackgroundBuilding() ? mongo::internalIndexBuildBulkLoadYieldIterations.load() : 0". The value of "kYieldIterations" is now 0.