import (
	"github.com/raulbajales/go-argcheck/argcheck"
	"fmt"
)

func calculateMonthlySalary(total int, numMonths int) int {
	argcheck.GreaterThanf(numMonths, 0, "numMonths must be positive and not zero, numMonths is %v", numMonths)
	return total / numMonths
}

func main() {
 	total := 50000
	numMonths := 0
	fmt.Printf("Total salary of %v in %v months, gives %v per month.", total, numMonths, calculateMonthlySalary(total, numMonths))
}