The image shows mathematical problems involving division and multiplication. The first problem is a division of 17640 by 35, shown in long division format, with the result 504. The second problem is the division of 96048 by 24, also in long division format, with the result 4002. The third problem is the division of 34860 by 42, with the result 830. Below these are three more division problems: 13915 divided by 23, 3696 divided by 12, and 26880 divided by 32. Finally, there are two multiplication problems: 706 multiplied by 319, and 82 multiplied by 405. Please solve these problems.