Updated input handler return value for '*' and added division

src/inputHandler.c

@@ -7,8 +7,10 @@ int getOperationId(char symbol) {
             return 1;
         case '-':
             return 2;
-        case '*':
+        case '/':
             return 3;
+        case '*':
+            return 4;
     }
     return id;
 }