Alright, let's solve this math problem step by step. First, we have the number 603. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 48. So, we're going to take the number 603 and add it to itself 48 times.
Step 1: 0 + 603 = 603
Step 2: 603 + 603 = 1206
Step 3: 1206 + 603 = 1809
Step 4: 1809 + 603 = 2412
Step 5: 2412 + 603 = 3015
Step 6: 3015 + 603 = 3618
Step 7: 3618 + 603 = 4221
Step 8: 4221 + 603 = 4824
Step 9: 4824 + 603 = 5427
Step 10: 5427 + 603 = 6030
Step 11: 6030 + 603 = 6633
Step 12: 6633 + 603 = 7236
Step 13: 7236 + 603 = 7839
Step 14: 7839 + 603 = 8442
Step 15: 8442 + 603 = 9045
Step 16: 9045 + 603 = 9648
Step 17: 9648 + 603 = 10251
Step 18: 10251 + 603 = 10854
Step 19: 10854 + 603 = 11457
Step 20: 11457 + 603 = 12060
Step 21: 12060 + 603 = 12663
Step 22: 12663 + 603 = 13266
Step 23: 13266 + 603 = 13869
Step 24: 13869 + 603 = 14472
Step 25: 14472 + 603 = 15075
Step 26: 15075 + 603 = 15678
Step 27: 15678 + 603 = 16281
Step 28: 16281 + 603 = 16884
Step 29: 16884 + 603 = 17487
Step 30: 17487 + 603 = 18090
Step 31: 18090 + 603 = 18693
Step 32: 18693 + 603 = 19296
Step 33: 19296 + 603 = 19899
Step 34: 19899 + 603 = 20502
Step 35: 20502 + 603 = 21105
Step 36: 21105 + 603 = 21708
Step 37: 21708 + 603 = 22311
Step 38: 22311 + 603 = 22914
Step 39: 22914 + 603 = 23517
Step 40: 23517 + 603 = 24120
Step 41: 24120 + 603 = 24723
Step 42: 24723 + 603 = 25326
Step 43: 25326 + 603 = 25929
Step 44: 25929 + 603 = 26532
Step 45: 26532 + 603 = 27135
Step 46: 27135 + 603 = 27738
Step 47: 27738 + 603 = 28341
Step 48: 28341 + 603 = 28944

So, 603*48 = 28944