Sure thing, let's get straight to it. We start with 101 and we're going to multiply it by 20, which means adding 101 to itself 20 times.
Step 1: 0 + 101 = 101
Step 2: 101 + 101 = 202
Step 3: 202 + 101 = 303
Step 4: 303 + 101 = 404
Step 5: 404 + 101 = 505
Step 6: 505 + 101 = 606
Step 7: 606 + 101 = 707
Step 8: 707 + 101 = 808
Step 9: 808 + 101 = 909
Step 10: 909 + 101 = 1010
Step 11: 1010 + 101 = 1111
Step 12: 1111 + 101 = 1212
Step 13: 1212 + 101 = 1313
Step 14: 1313 + 101 = 1414
Step 15: 1414 + 101 = 1515
Step 16: 1515 + 101 = 1616
Step 17: 1616 + 101 = 1717
Step 18: 1717 + 101 = 1818
Step 19: 1818 + 101 = 1919
Step 20: 1919 + 101 = 2020

So, 101*20 = 2020