Sure thing, let's get straight to it. We start with 162 and we're going to multiply it by 20, which means adding 162 to itself 20 times.
Step 1: 0 + 162 = 162
Step 2: 162 + 162 = 324
Step 3: 324 + 162 = 486
Step 4: 486 + 162 = 648
Step 5: 648 + 162 = 810
Step 6: 810 + 162 = 972
Step 7: 972 + 162 = 1134
Step 8: 1134 + 162 = 1296
Step 9: 1296 + 162 = 1458
Step 10: 1458 + 162 = 1620
Step 11: 1620 + 162 = 1782
Step 12: 1782 + 162 = 1944
Step 13: 1944 + 162 = 2106
Step 14: 2106 + 162 = 2268
Step 15: 2268 + 162 = 2430
Step 16: 2430 + 162 = 2592
Step 17: 2592 + 162 = 2754
Step 18: 2754 + 162 = 2916
Step 19: 2916 + 162 = 3078
Step 20: 3078 + 162 = 3240

So, 162*20 = 3240