Alright, let's solve this math problem step by step. First, we have the number 101. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 42. So, we're going to take the number 101 and add it to itself 42 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
Step 21: 2020 + 101 = 2121
Step 22: 2121 + 101 = 2222
Step 23: 2222 + 101 = 2323
Step 24: 2323 + 101 = 2424
Step 25: 2424 + 101 = 2525
Step 26: 2525 + 101 = 2626
Step 27: 2626 + 101 = 2727
Step 28: 2727 + 101 = 2828
Step 29: 2828 + 101 = 2929
Step 30: 2929 + 101 = 3030
Step 31: 3030 + 101 = 3131
Step 32: 3131 + 101 = 3232
Step 33: 3232 + 101 = 3333
Step 34: 3333 + 101 = 3434
Step 35: 3434 + 101 = 3535
Step 36: 3535 + 101 = 3636
Step 37: 3636 + 101 = 3737
Step 38: 3737 + 101 = 3838
Step 39: 3838 + 101 = 3939
Step 40: 3939 + 101 = 4040
Step 41: 4040 + 101 = 4141
Step 42: 4141 + 101 = 4242

So, 101*42 = 4242