Alright, let's solve this math problem step by step. First, we have the number 336. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 77. So, we're going to take the number 336 and add it to itself 77 times.
Step 1: 0 + 336 = 336
Step 2: 336 + 336 = 672
Step 3: 672 + 336 = 1008
Step 4: 1008 + 336 = 1344
Step 5: 1344 + 336 = 1680
Step 6: 1680 + 336 = 2016
Step 7: 2016 + 336 = 2352
Step 8: 2352 + 336 = 2688
Step 9: 2688 + 336 = 3024
Step 10: 3024 + 336 = 3360
Step 11: 3360 + 336 = 3696
Step 12: 3696 + 336 = 4032
Step 13: 4032 + 336 = 4368
Step 14: 4368 + 336 = 4704
Step 15: 4704 + 336 = 5040
Step 16: 5040 + 336 = 5376
Step 17: 5376 + 336 = 5712
Step 18: 5712 + 336 = 6048
Step 19: 6048 + 336 = 6384
Step 20: 6384 + 336 = 6720
Step 21: 6720 + 336 = 7056
Step 22: 7056 + 336 = 7392
Step 23: 7392 + 336 = 7728
Step 24: 7728 + 336 = 8064
Step 25: 8064 + 336 = 8400
Step 26: 8400 + 336 = 8736
Step 27: 8736 + 336 = 9072
Step 28: 9072 + 336 = 9408
Step 29: 9408 + 336 = 9744
Step 30: 9744 + 336 = 10080
Step 31: 10080 + 336 = 10416
Step 32: 10416 + 336 = 10752
Step 33: 10752 + 336 = 11088
Step 34: 11088 + 336 = 11424
Step 35: 11424 + 336 = 11760
Step 36: 11760 + 336 = 12096
Step 37: 12096 + 336 = 12432
Step 38: 12432 + 336 = 12768
Step 39: 12768 + 336 = 13104
Step 40: 13104 + 336 = 13440
Step 41: 13440 + 336 = 13776
Step 42: 13776 + 336 = 14112
Step 43: 14112 + 336 = 14448
Step 44: 14448 + 336 = 14784
Step 45: 14784 + 336 = 15120
Step 46: 15120 + 336 = 15456
Step 47: 15456 + 336 = 15792
Step 48: 15792 + 336 = 16128
Step 49: 16128 + 336 = 16464
Step 50: 16464 + 336 = 16800
Step 51: 16800 + 336 = 17136
Step 52: 17136 + 336 = 17472
Step 53: 17472 + 336 = 17808
Step 54: 17808 + 336 = 18144
Step 55: 18144 + 336 = 18480
Step 56: 18480 + 336 = 18816
Step 57: 18816 + 336 = 19152
Step 58: 19152 + 336 = 19488
Step 59: 19488 + 336 = 19824
Step 60: 19824 + 336 = 20160
Step 61: 20160 + 336 = 20496
Step 62: 20496 + 336 = 20832
Step 63: 20832 + 336 = 21168
Step 64: 21168 + 336 = 21504
Step 65: 21504 + 336 = 21840
Step 66: 21840 + 336 = 22176
Step 67: 22176 + 336 = 22512
Step 68: 22512 + 336 = 22848
Step 69: 22848 + 336 = 23184
Step 70: 23184 + 336 = 23520
Step 71: 23520 + 336 = 23856
Step 72: 23856 + 336 = 24192
Step 73: 24192 + 336 = 24528
Step 74: 24528 + 336 = 24864
Step 75: 24864 + 336 = 25200
Step 76: 25200 + 336 = 25536
Step 77: 25536 + 336 = 25872

So, 336*77 = 25872