Sure thing! We've got 975 and we're gonna multiply it by 15. That's the same as adding 975 to itself 15 times.
Step 1: 0 + 975 = 975
Step 2: 975 + 975 = 1950
Step 3: 1950 + 975 = 2925
Step 4: 2925 + 975 = 3900
Step 5: 3900 + 975 = 4875
Step 6: 4875 + 975 = 5850
Step 7: 5850 + 975 = 6825
Step 8: 6825 + 975 = 7800
Step 9: 7800 + 975 = 8775
Step 10: 8775 + 975 = 9750
Step 11: 9750 + 975 = 10725
Step 12: 10725 + 975 = 11700
Step 13: 11700 + 975 = 12675
Step 14: 12675 + 975 = 13650
Step 15: 13650 + 975 = 14625

So, 975*15 = 14625