Alright, let's solve this math problem step by step. First, we have the number 45. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 336. So, we're going to take the number 45 and add it to itself 336 times.
Step 1: 0 + 45 = 45
Step 2: 45 + 45 = 90
Step 3: 90 + 45 = 135
Step 4: 135 + 45 = 180
Step 5: 180 + 45 = 225
Step 6: 225 + 45 = 270
Step 7: 270 + 45 = 315
Step 8: 315 + 45 = 360
Step 9: 360 + 45 = 405
Step 10: 405 + 45 = 450
Step 11: 450 + 45 = 495
Step 12: 495 + 45 = 540
Step 13: 540 + 45 = 585
Step 14: 585 + 45 = 630
Step 15: 630 + 45 = 675
Step 16: 675 + 45 = 720
Step 17: 720 + 45 = 765
Step 18: 765 + 45 = 810
Step 19: 810 + 45 = 855
Step 20: 855 + 45 = 900
Step 21: 900 + 45 = 945
Step 22: 945 + 45 = 990
Step 23: 990 + 45 = 1035
Step 24: 1035 + 45 = 1080
Step 25: 1080 + 45 = 1125
Step 26: 1125 + 45 = 1170
Step 27: 1170 + 45 = 1215
Step 28: 1215 + 45 = 1260
Step 29: 1260 + 45 = 1305
Step 30: 1305 + 45 = 1350
Step 31: 1350 + 45 = 1395
Step 32: 1395 + 45 = 1440
Step 33: 1440 + 45 = 1485
Step 34: 1485 + 45 = 1530
Step 35: 1530 + 45 = 1575
Step 36: 1575 + 45 = 1620
Step 37: 1620 + 45 = 1665
Step 38: 1665 + 45 = 1710
Step 39: 1710 + 45 = 1755
Step 40: 1755 + 45 = 1800
Step 41: 1800 + 45 = 1845
Step 42: 1845 + 45 = 1890
Step 43: 1890 + 45 = 1935
Step 44: 1935 + 45 = 1980
Step 45: 1980 + 45 = 2025
Step 46: 2025 + 45 = 2070
Step 47: 2070 + 45 = 2115
Step 48: 2115 + 45 = 2160
Step 49: 2160 + 45 = 2205
Step 50: 2205 + 45 = 2250
Step 51: 2250 + 45 = 2295
Step 52: 2295 + 45 = 2340
Step 53: 2340 + 45 = 2385
Step 54: 2385 + 45 = 2430
Step 55: 2430 + 45 = 2475
Step 56: 2475 + 45 = 2520
Step 57: 2520 + 45 = 2565
Step 58: 2565 + 45 = 2610
Step 59: 2610 + 45 = 2655
Step 60: 2655 + 45 = 2700
Step 61: 2700 + 45 = 2745
Step 62: 2745 + 45 = 2790
Step 63: 2790 + 45 = 2835
Step 64: 2835 + 45 = 2880
Step 65: 2880 + 45 = 2925
Step 66: 2925 + 45 = 2970
Step 67: 2970 + 45 = 3015
Step 68: 3015 + 45 = 3060
Step 69: 3060 + 45 = 3105
Step 70: 3105 + 45 = 3150
Step 71: 3150 + 45 = 3195
Step 72: 3195 + 45 = 3240
Step 73: 3240 + 45 = 3285
Step 74: 3285 + 45 = 3330
Step 75: 3330 + 45 = 3375
Step 76: 3375 + 45 = 3420
Step 77: 3420 + 45 = 3465
Step 78: 3465 + 45 = 3510
Step 79: 3510 + 45 = 3555
Step 80: 3555 + 45 = 3600
Step 81: 3600 + 45 = 3645
Step 82: 3645 + 45 = 3690
Step 83: 3690 + 45 = 3735
Step 84: 3735 + 45 = 3780
Step 85: 3780 + 45 = 3825
Step 86: 3825 + 45 = 3870
Step 87: 3870 + 45 = 3915
Step 88: 3915 + 45 = 3960
Step 89: 3960 + 45 = 4005
Step 90: 4005 + 45 = 4050
Step 91: 4050 + 45 = 4095
Step 92: 4095 + 45 = 4140
Step 93: 4140 + 45 = 4185
Step 94: 4185 + 45 = 4230
Step 95: 4230 + 45 = 4275
Step 96: 4275 + 45 = 4320
Step 97: 4320 + 45 = 4365
Step 98: 4365 + 45 = 4410
Step 99: 4410 + 45 = 4455
Step 100: 4455 + 45 = 4500
Step 101: 4500 + 45 = 4545
Step 102: 4545 + 45 = 4590
Step 103: 4590 + 45 = 4635
Step 104: 4635 + 45 = 4680
Step 105: 4680 + 45 = 4725
Step 106: 4725 + 45 = 4770
Step 107: 4770 + 45 = 4815
Step 108: 4815 + 45 = 4860
Step 109: 4860 + 45 = 4905
Step 110: 4905 + 45 = 4950
Step 111: 4950 + 45 = 4995
Step 112: 4995 + 45 = 5040
Step 113: 5040 + 45 = 5085
Step 114: 5085 + 45 = 5130
Step 115: 5130 + 45 = 5175
Step 116: 5175 + 45 = 5220
Step 117: 5220 + 45 = 5265
Step 118: 5265 + 45 = 5310
Step 119: 5310 + 45 = 5355
Step 120: 5355 + 45 = 5400
Step 121: 5400 + 45 = 5445
Step 122: 5445 + 45 = 5490
Step 123: 5490 + 45 = 5535
Step 124: 5535 + 45 = 5580
Step 125: 5580 + 45 = 5625
Step 126: 5625 + 45 = 5670
Step 127: 5670 + 45 = 5715
Step 128: 5715 + 45 = 5760
Step 129: 5760 + 45 = 5805
Step 130: 5805 + 45 = 5850
Step 131: 5850 + 45 = 5895
Step 132: 5895 + 45 = 5940
Step 133: 5940 + 45 = 5985
Step 134: 5985 + 45 = 6030
Step 135: 6030 + 45 = 6075
Step 136: 6075 + 45 = 6120
Step 137: 6120 + 45 = 6165
Step 138: 6165 + 45 = 6210
Step 139: 6210 + 45 = 6255
Step 140: 6255 + 45 = 6300
Step 141: 6300 + 45 = 6345
Step 142: 6345 + 45 = 6390
Step 143: 6390 + 45 = 6435
Step 144: 6435 + 45 = 6480
Step 145: 6480 + 45 = 6525
Step 146: 6525 + 45 = 6570
Step 147: 6570 + 45 = 6615
Step 148: 6615 + 45 = 6660
Step 149: 6660 + 45 = 6705
Step 150: 6705 + 45 = 6750
Step 151: 6750 + 45 = 6795
Step 152: 6795 + 45 = 6840
Step 153: 6840 + 45 = 6885
Step 154: 6885 + 45 = 6930
Step 155: 6930 + 45 = 6975
Step 156: 6975 + 45 = 7020
Step 157: 7020 + 45 = 7065
Step 158: 7065 + 45 = 7110
Step 159: 7110 + 45 = 7155
Step 160: 7155 + 45 = 7200
Step 161: 7200 + 45 = 7245
Step 162: 7245 + 45 = 7290
Step 163: 7290 + 45 = 7335
Step 164: 7335 + 45 = 7380
Step 165: 7380 + 45 = 7425
Step 166: 7425 + 45 = 7470
Step 167: 7470 + 45 = 7515
Step 168: 7515 + 45 = 7560
Step 169: 7560 + 45 = 7605
Step 170: 7605 + 45 = 7650
Step 171: 7650 + 45 = 7695
Step 172: 7695 + 45 = 7740
Step 173: 7740 + 45 = 7785
Step 174: 7785 + 45 = 7830
Step 175: 7830 + 45 = 7875
Step 176: 7875 + 45 = 7920
Step 177: 7920 + 45 = 7965
Step 178: 7965 + 45 = 8010
Step 179: 8010 + 45 = 8055
Step 180: 8055 + 45 = 8100
Step 181: 8100 + 45 = 8145
Step 182: 8145 + 45 = 8190
Step 183: 8190 + 45 = 8235
Step 184: 8235 + 45 = 8280
Step 185: 8280 + 45 = 8325
Step 186: 8325 + 45 = 8370
Step 187: 8370 + 45 = 8415
Step 188: 8415 + 45 = 8460
Step 189: 8460 + 45 = 8505
Step 190: 8505 + 45 = 8550
Step 191: 8550 + 45 = 8595
Step 192: 8595 + 45 = 8640
Step 193: 8640 + 45 = 8685
Step 194: 8685 + 45 = 8730
Step 195: 8730 + 45 = 8775
Step 196: 8775 + 45 = 8820
Step 197: 8820 + 45 = 8865
Step 198: 8865 + 45 = 8910
Step 199: 8910 + 45 = 8955
Step 200: 8955 + 45 = 9000
Step 201: 9000 + 45 = 9045
Step 202: 9045 + 45 = 9090
Step 203: 9090 + 45 = 9135
Step 204: 9135 + 45 = 9180
Step 205: 9180 + 45 = 9225
Step 206: 9225 + 45 = 9270
Step 207: 9270 + 45 = 9315
Step 208: 9315 + 45 = 9360
Step 209: 9360 + 45 = 9405
Step 210: 9405 + 45 = 9450
Step 211: 9450 + 45 = 9495
Step 212: 9495 + 45 = 9540
Step 213: 9540 + 45 = 9585
Step 214: 9585 + 45 = 9630
Step 215: 9630 + 45 = 9675
Step 216: 9675 + 45 = 9720
Step 217: 9720 + 45 = 9765
Step 218: 9765 + 45 = 9810
Step 219: 9810 + 45 = 9855
Step 220: 9855 + 45 = 9900
Step 221: 9900 + 45 = 9945
Step 222: 9945 + 45 = 9990
Step 223: 9990 + 45 = 10035
Step 224: 10035 + 45 = 10080
Step 225: 10080 + 45 = 10125
Step 226: 10125 + 45 = 10170
Step 227: 10170 + 45 = 10215
Step 228: 10215 + 45 = 10260
Step 229: 10260 + 45 = 10305
Step 230: 10305 + 45 = 10350
Step 231: 10350 + 45 = 10395
Step 232: 10395 + 45 = 10440
Step 233: 10440 + 45 = 10485
Step 234: 10485 + 45 = 10530
Step 235: 10530 + 45 = 10575
Step 236: 10575 + 45 = 10620
Step 237: 10620 + 45 = 10665
Step 238: 10665 + 45 = 10710
Step 239: 10710 + 45 = 10755
Step 240: 10755 + 45 = 10800
Step 241: 10800 + 45 = 10845
Step 242: 10845 + 45 = 10890
Step 243: 10890 + 45 = 10935
Step 244: 10935 + 45 = 10980
Step 245: 10980 + 45 = 11025
Step 246: 11025 + 45 = 11070
Step 247: 11070 + 45 = 11115
Step 248: 11115 + 45 = 11160
Step 249: 11160 + 45 = 11205
Step 250: 11205 + 45 = 11250
Step 251: 11250 + 45 = 11295
Step 252: 11295 + 45 = 11340
Step 253: 11340 + 45 = 11385
Step 254: 11385 + 45 = 11430
Step 255: 11430 + 45 = 11475
Step 256: 11475 + 45 = 11520
Step 257: 11520 + 45 = 11565
Step 258: 11565 + 45 = 11610
Step 259: 11610 + 45 = 11655
Step 260: 11655 + 45 = 11700
Step 261: 11700 + 45 = 11745
Step 262: 11745 + 45 = 11790
Step 263: 11790 + 45 = 11835
Step 264: 11835 + 45 = 11880
Step 265: 11880 + 45 = 11925
Step 266: 11925 + 45 = 11970
Step 267: 11970 + 45 = 12015
Step 268: 12015 + 45 = 12060
Step 269: 12060 + 45 = 12105
Step 270: 12105 + 45 = 12150
Step 271: 12150 + 45 = 12195
Step 272: 12195 + 45 = 12240
Step 273: 12240 + 45 = 12285
Step 274: 12285 + 45 = 12330
Step 275: 12330 + 45 = 12375
Step 276: 12375 + 45 = 12420
Step 277: 12420 + 45 = 12465
Step 278: 12465 + 45 = 12510
Step 279: 12510 + 45 = 12555
Step 280: 12555 + 45 = 12600
Step 281: 12600 + 45 = 12645
Step 282: 12645 + 45 = 12690
Step 283: 12690 + 45 = 12735
Step 284: 12735 + 45 = 12780
Step 285: 12780 + 45 = 12825
Step 286: 12825 + 45 = 12870
Step 287: 12870 + 45 = 12915
Step 288: 12915 + 45 = 12960
Step 289: 12960 + 45 = 13005
Step 290: 13005 + 45 = 13050
Step 291: 13050 + 45 = 13095
Step 292: 13095 + 45 = 13140
Step 293: 13140 + 45 = 13185
Step 294: 13185 + 45 = 13230
Step 295: 13230 + 45 = 13275
Step 296: 13275 + 45 = 13320
Step 297: 13320 + 45 = 13365
Step 298: 13365 + 45 = 13410
Step 299: 13410 + 45 = 13455
Step 300: 13455 + 45 = 13500
Step 301: 13500 + 45 = 13545
Step 302: 13545 + 45 = 13590
Step 303: 13590 + 45 = 13635
Step 304: 13635 + 45 = 13680
Step 305: 13680 + 45 = 13725
Step 306: 13725 + 45 = 13770
Step 307: 13770 + 45 = 13815
Step 308: 13815 + 45 = 13860
Step 309: 13860 + 45 = 13905
Step 310: 13905 + 45 = 13950
Step 311: 13950 + 45 = 13995
Step 312: 13995 + 45 = 14040
Step 313: 14040 + 45 = 14085
Step 314: 14085 + 45 = 14130
Step 315: 14130 + 45 = 14175
Step 316: 14175 + 45 = 14220
Step 317: 14220 + 45 = 14265
Step 318: 14265 + 45 = 14310
Step 319: 14310 + 45 = 14355
Step 320: 14355 + 45 = 14400
Step 321: 14400 + 45 = 14445
Step 322: 14445 + 45 = 14490
Step 323: 14490 + 45 = 14535
Step 324: 14535 + 45 = 14580
Step 325: 14580 + 45 = 14625
Step 326: 14625 + 45 = 14670
Step 327: 14670 + 45 = 14715
Step 328: 14715 + 45 = 14760
Step 329: 14760 + 45 = 14805
Step 330: 14805 + 45 = 14850
Step 331: 14850 + 45 = 14895
Step 332: 14895 + 45 = 14940
Step 333: 14940 + 45 = 14985
Step 334: 14985 + 45 = 15030
Step 335: 15030 + 45 = 15075
Step 336: 15075 + 45 = 15120

So, 45*336 = 15120