Let's roll up our sleeves and solve this. We have 541 and we're going to multiply it by 33, essentially adding 541 to itself 33 times.
Step 1: 0 + 541 = 541
Step 2: 541 + 541 = 1082
Step 3: 1082 + 541 = 1623
Step 4: 1623 + 541 = 2164
Step 5: 2164 + 541 = 2705
Step 6: 2705 + 541 = 3246
Step 7: 3246 + 541 = 3787
Step 8: 3787 + 541 = 4328
Step 9: 4328 + 541 = 4869
Step 10: 4869 + 541 = 5410
Step 11: 5410 + 541 = 5951
Step 12: 5951 + 541 = 6492
Step 13: 6492 + 541 = 7033
Step 14: 7033 + 541 = 7574
Step 15: 7574 + 541 = 8115
Step 16: 8115 + 541 = 8656
Step 17: 8656 + 541 = 9197
Step 18: 9197 + 541 = 9738
Step 19: 9738 + 541 = 10279
Step 20: 10279 + 541 = 10820
Step 21: 10820 + 541 = 11361
Step 22: 11361 + 541 = 11902
Step 23: 11902 + 541 = 12443
Step 24: 12443 + 541 = 12984
Step 25: 12984 + 541 = 13525
Step 26: 13525 + 541 = 14066
Step 27: 14066 + 541 = 14607
Step 28: 14607 + 541 = 15148
Step 29: 15148 + 541 = 15689
Step 30: 15689 + 541 = 16230
Step 31: 16230 + 541 = 16771
Step 32: 16771 + 541 = 17312
Step 33: 17312 + 541 = 17853

So, 541*33 = 17853