Without delay, let's solve this. We've got 315 and we will be multiplying it by 52, that is, adding 315 to itself 52 times.
Step 1: 0 + 315 = 315
Step 2: 315 + 315 = 630
Step 3: 630 + 315 = 945
Step 4: 945 + 315 = 1260
Step 5: 1260 + 315 = 1575
Step 6: 1575 + 315 = 1890
Step 7: 1890 + 315 = 2205
Step 8: 2205 + 315 = 2520
Step 9: 2520 + 315 = 2835
Step 10: 2835 + 315 = 3150
Step 11: 3150 + 315 = 3465
Step 12: 3465 + 315 = 3780
Step 13: 3780 + 315 = 4095
Step 14: 4095 + 315 = 4410
Step 15: 4410 + 315 = 4725
Step 16: 4725 + 315 = 5040
Step 17: 5040 + 315 = 5355
Step 18: 5355 + 315 = 5670
Step 19: 5670 + 315 = 5985
Step 20: 5985 + 315 = 6300
Step 21: 6300 + 315 = 6615
Step 22: 6615 + 315 = 6930
Step 23: 6930 + 315 = 7245
Step 24: 7245 + 315 = 7560
Step 25: 7560 + 315 = 7875
Step 26: 7875 + 315 = 8190
Step 27: 8190 + 315 = 8505
Step 28: 8505 + 315 = 8820
Step 29: 8820 + 315 = 9135
Step 30: 9135 + 315 = 9450
Step 31: 9450 + 315 = 9765
Step 32: 9765 + 315 = 10080
Step 33: 10080 + 315 = 10395
Step 34: 10395 + 315 = 10710
Step 35: 10710 + 315 = 11025
Step 36: 11025 + 315 = 11340
Step 37: 11340 + 315 = 11655
Step 38: 11655 + 315 = 11970
Step 39: 11970 + 315 = 12285
Step 40: 12285 + 315 = 12600
Step 41: 12600 + 315 = 12915
Step 42: 12915 + 315 = 13230
Step 43: 13230 + 315 = 13545
Step 44: 13545 + 315 = 13860
Step 45: 13860 + 315 = 14175
Step 46: 14175 + 315 = 14490
Step 47: 14490 + 315 = 14805
Step 48: 14805 + 315 = 15120
Step 49: 15120 + 315 = 15435
Step 50: 15435 + 315 = 15750
Step 51: 15750 + 315 = 16065
Step 52: 16065 + 315 = 16380

So, 315*52 = 16380