#include
                int main()
                {
                    //this programm calculate the quotient ,and remainder
                    int num_1,num_2;
                    printf("num_1=");
                    scanf("%d",&num_1);
                    printf("num_2=");
                    scanf("%d",&num_2);
                    if(num_2!=0)
                    {//we can not calculate division by zero
                        printf("quotient=%f\n",num_1/(float)num_2);//(float) to not neglect the fraction
                        printf("remainder=%d",num_1%num_2);
                    }
                    else
                    printf("un known");
                    
                    return 0;
                }