Let's roll up our sleeves and solve this. We have 492 and we're going to multiply it by 41, essentially adding 492 to itself 41 times.
Step 1: 0 + 492 = 492
Step 2: 492 + 492 = 984
Step 3: 984 + 492 = 1476
Step 4: 1476 + 492 = 1968
Step 5: 1968 + 492 = 2460
Step 6: 2460 + 492 = 2952
Step 7: 2952 + 492 = 3444
Step 8: 3444 + 492 = 3936
Step 9: 3936 + 492 = 4428
Step 10: 4428 + 492 = 4920
Step 11: 4920 + 492 = 5412
Step 12: 5412 + 492 = 5904
Step 13: 5904 + 492 = 6396
Step 14: 6396 + 492 = 6888
Step 15: 6888 + 492 = 7380
Step 16: 7380 + 492 = 7872
Step 17: 7872 + 492 = 8364
Step 18: 8364 + 492 = 8856
Step 19: 8856 + 492 = 9348
Step 20: 9348 + 492 = 9840
Step 21: 9840 + 492 = 10332
Step 22: 10332 + 492 = 10824
Step 23: 10824 + 492 = 11316
Step 24: 11316 + 492 = 11808
Step 25: 11808 + 492 = 12300
Step 26: 12300 + 492 = 12792
Step 27: 12792 + 492 = 13284
Step 28: 13284 + 492 = 13776
Step 29: 13776 + 492 = 14268
Step 30: 14268 + 492 = 14760
Step 31: 14760 + 492 = 15252
Step 32: 15252 + 492 = 15744
Step 33: 15744 + 492 = 16236
Step 34: 16236 + 492 = 16728
Step 35: 16728 + 492 = 17220
Step 36: 17220 + 492 = 17712
Step 37: 17712 + 492 = 18204
Step 38: 18204 + 492 = 18696
Step 39: 18696 + 492 = 19188
Step 40: 19188 + 492 = 19680
Step 41: 19680 + 492 = 20172

So, 492*41 = 20172