Alright, let's solve this math problem step by step. First, we have the number 305. 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 305 and add it to itself 48 times.
Step 1: 0 + 305 = 305
Step 2: 305 + 305 = 610
Step 3: 610 + 305 = 915
Step 4: 915 + 305 = 1220
Step 5: 1220 + 305 = 1525
Step 6: 1525 + 305 = 1830
Step 7: 1830 + 305 = 2135
Step 8: 2135 + 305 = 2440
Step 9: 2440 + 305 = 2745
Step 10: 2745 + 305 = 3050
Step 11: 3050 + 305 = 3355
Step 12: 3355 + 305 = 3660
Step 13: 3660 + 305 = 3965
Step 14: 3965 + 305 = 4270
Step 15: 4270 + 305 = 4575
Step 16: 4575 + 305 = 4880
Step 17: 4880 + 305 = 5185
Step 18: 5185 + 305 = 5490
Step 19: 5490 + 305 = 5795
Step 20: 5795 + 305 = 6100
Step 21: 6100 + 305 = 6405
Step 22: 6405 + 305 = 6710
Step 23: 6710 + 305 = 7015
Step 24: 7015 + 305 = 7320
Step 25: 7320 + 305 = 7625
Step 26: 7625 + 305 = 7930
Step 27: 7930 + 305 = 8235
Step 28: 8235 + 305 = 8540
Step 29: 8540 + 305 = 8845
Step 30: 8845 + 305 = 9150
Step 31: 9150 + 305 = 9455
Step 32: 9455 + 305 = 9760
Step 33: 9760 + 305 = 10065
Step 34: 10065 + 305 = 10370
Step 35: 10370 + 305 = 10675
Step 36: 10675 + 305 = 10980
Step 37: 10980 + 305 = 11285
Step 38: 11285 + 305 = 11590
Step 39: 11590 + 305 = 11895
Step 40: 11895 + 305 = 12200
Step 41: 12200 + 305 = 12505
Step 42: 12505 + 305 = 12810
Step 43: 12810 + 305 = 13115
Step 44: 13115 + 305 = 13420
Step 45: 13420 + 305 = 13725
Step 46: 13725 + 305 = 14030
Step 47: 14030 + 305 = 14335
Step 48: 14335 + 305 = 14640

So, 305*48 = 14640