OK, let's crack this. We're given 436 and our task is to multiply it by 48. Essentially, we'll be adding 436 to itself 48 times.
Step 1: 0 + 436 = 436
Step 2: 436 + 436 = 872
Step 3: 872 + 436 = 1308
Step 4: 1308 + 436 = 1744
Step 5: 1744 + 436 = 2180
Step 6: 2180 + 436 = 2616
Step 7: 2616 + 436 = 3052
Step 8: 3052 + 436 = 3488
Step 9: 3488 + 436 = 3924
Step 10: 3924 + 436 = 4360
Step 11: 4360 + 436 = 4796
Step 12: 4796 + 436 = 5232
Step 13: 5232 + 436 = 5668
Step 14: 5668 + 436 = 6104
Step 15: 6104 + 436 = 6540
Step 16: 6540 + 436 = 6976
Step 17: 6976 + 436 = 7412
Step 18: 7412 + 436 = 7848
Step 19: 7848 + 436 = 8284
Step 20: 8284 + 436 = 8720
Step 21: 8720 + 436 = 9156
Step 22: 9156 + 436 = 9592
Step 23: 9592 + 436 = 10028
Step 24: 10028 + 436 = 10464
Step 25: 10464 + 436 = 10900
Step 26: 10900 + 436 = 11336
Step 27: 11336 + 436 = 11772
Step 28: 11772 + 436 = 12208
Step 29: 12208 + 436 = 12644
Step 30: 12644 + 436 = 13080
Step 31: 13080 + 436 = 13516
Step 32: 13516 + 436 = 13952
Step 33: 13952 + 436 = 14388
Step 34: 14388 + 436 = 14824
Step 35: 14824 + 436 = 15260
Step 36: 15260 + 436 = 15696
Step 37: 15696 + 436 = 16132
Step 38: 16132 + 436 = 16568
Step 39: 16568 + 436 = 17004
Step 40: 17004 + 436 = 17440
Step 41: 17440 + 436 = 17876
Step 42: 17876 + 436 = 18312
Step 43: 18312 + 436 = 18748
Step 44: 18748 + 436 = 19184
Step 45: 19184 + 436 = 19620
Step 46: 19620 + 436 = 20056
Step 47: 20056 + 436 = 20492
Step 48: 20492 + 436 = 20928

So, 436*48 = 20928