Let's roll up our sleeves and solve this. We have 144 and we're going to multiply it by 316, essentially adding 144 to itself 316 times.
Step 1: 0 + 144 = 144
Step 2: 144 + 144 = 288
Step 3: 288 + 144 = 432
Step 4: 432 + 144 = 576
Step 5: 576 + 144 = 720
Step 6: 720 + 144 = 864
Step 7: 864 + 144 = 1008
Step 8: 1008 + 144 = 1152
Step 9: 1152 + 144 = 1296
Step 10: 1296 + 144 = 1440
Step 11: 1440 + 144 = 1584
Step 12: 1584 + 144 = 1728
Step 13: 1728 + 144 = 1872
Step 14: 1872 + 144 = 2016
Step 15: 2016 + 144 = 2160
Step 16: 2160 + 144 = 2304
Step 17: 2304 + 144 = 2448
Step 18: 2448 + 144 = 2592
Step 19: 2592 + 144 = 2736
Step 20: 2736 + 144 = 2880
Step 21: 2880 + 144 = 3024
Step 22: 3024 + 144 = 3168
Step 23: 3168 + 144 = 3312
Step 24: 3312 + 144 = 3456
Step 25: 3456 + 144 = 3600
Step 26: 3600 + 144 = 3744
Step 27: 3744 + 144 = 3888
Step 28: 3888 + 144 = 4032
Step 29: 4032 + 144 = 4176
Step 30: 4176 + 144 = 4320
Step 31: 4320 + 144 = 4464
Step 32: 4464 + 144 = 4608
Step 33: 4608 + 144 = 4752
Step 34: 4752 + 144 = 4896
Step 35: 4896 + 144 = 5040
Step 36: 5040 + 144 = 5184
Step 37: 5184 + 144 = 5328
Step 38: 5328 + 144 = 5472
Step 39: 5472 + 144 = 5616
Step 40: 5616 + 144 = 5760
Step 41: 5760 + 144 = 5904
Step 42: 5904 + 144 = 6048
Step 43: 6048 + 144 = 6192
Step 44: 6192 + 144 = 6336
Step 45: 6336 + 144 = 6480
Step 46: 6480 + 144 = 6624
Step 47: 6624 + 144 = 6768
Step 48: 6768 + 144 = 6912
Step 49: 6912 + 144 = 7056
Step 50: 7056 + 144 = 7200
Step 51: 7200 + 144 = 7344
Step 52: 7344 + 144 = 7488
Step 53: 7488 + 144 = 7632
Step 54: 7632 + 144 = 7776
Step 55: 7776 + 144 = 7920
Step 56: 7920 + 144 = 8064
Step 57: 8064 + 144 = 8208
Step 58: 8208 + 144 = 8352
Step 59: 8352 + 144 = 8496
Step 60: 8496 + 144 = 8640
Step 61: 8640 + 144 = 8784
Step 62: 8784 + 144 = 8928
Step 63: 8928 + 144 = 9072
Step 64: 9072 + 144 = 9216
Step 65: 9216 + 144 = 9360
Step 66: 9360 + 144 = 9504
Step 67: 9504 + 144 = 9648
Step 68: 9648 + 144 = 9792
Step 69: 9792 + 144 = 9936
Step 70: 9936 + 144 = 10080
Step 71: 10080 + 144 = 10224
Step 72: 10224 + 144 = 10368
Step 73: 10368 + 144 = 10512
Step 74: 10512 + 144 = 10656
Step 75: 10656 + 144 = 10800
Step 76: 10800 + 144 = 10944
Step 77: 10944 + 144 = 11088
Step 78: 11088 + 144 = 11232
Step 79: 11232 + 144 = 11376
Step 80: 11376 + 144 = 11520
Step 81: 11520 + 144 = 11664
Step 82: 11664 + 144 = 11808
Step 83: 11808 + 144 = 11952
Step 84: 11952 + 144 = 12096
Step 85: 12096 + 144 = 12240
Step 86: 12240 + 144 = 12384
Step 87: 12384 + 144 = 12528
Step 88: 12528 + 144 = 12672
Step 89: 12672 + 144 = 12816
Step 90: 12816 + 144 = 12960
Step 91: 12960 + 144 = 13104
Step 92: 13104 + 144 = 13248
Step 93: 13248 + 144 = 13392
Step 94: 13392 + 144 = 13536
Step 95: 13536 + 144 = 13680
Step 96: 13680 + 144 = 13824
Step 97: 13824 + 144 = 13968
Step 98: 13968 + 144 = 14112
Step 99: 14112 + 144 = 14256
Step 100: 14256 + 144 = 14400
Step 101: 14400 + 144 = 14544
Step 102: 14544 + 144 = 14688
Step 103: 14688 + 144 = 14832
Step 104: 14832 + 144 = 14976
Step 105: 14976 + 144 = 15120
Step 106: 15120 + 144 = 15264
Step 107: 15264 + 144 = 15408
Step 108: 15408 + 144 = 15552
Step 109: 15552 + 144 = 15696
Step 110: 15696 + 144 = 15840
Step 111: 15840 + 144 = 15984
Step 112: 15984 + 144 = 16128
Step 113: 16128 + 144 = 16272
Step 114: 16272 + 144 = 16416
Step 115: 16416 + 144 = 16560
Step 116: 16560 + 144 = 16704
Step 117: 16704 + 144 = 16848
Step 118: 16848 + 144 = 16992
Step 119: 16992 + 144 = 17136
Step 120: 17136 + 144 = 17280
Step 121: 17280 + 144 = 17424
Step 122: 17424 + 144 = 17568
Step 123: 17568 + 144 = 17712
Step 124: 17712 + 144 = 17856
Step 125: 17856 + 144 = 18000
Step 126: 18000 + 144 = 18144
Step 127: 18144 + 144 = 18288
Step 128: 18288 + 144 = 18432
Step 129: 18432 + 144 = 18576
Step 130: 18576 + 144 = 18720
Step 131: 18720 + 144 = 18864
Step 132: 18864 + 144 = 19008
Step 133: 19008 + 144 = 19152
Step 134: 19152 + 144 = 19296
Step 135: 19296 + 144 = 19440
Step 136: 19440 + 144 = 19584
Step 137: 19584 + 144 = 19728
Step 138: 19728 + 144 = 19872
Step 139: 19872 + 144 = 20016
Step 140: 20016 + 144 = 20160
Step 141: 20160 + 144 = 20304
Step 142: 20304 + 144 = 20448
Step 143: 20448 + 144 = 20592
Step 144: 20592 + 144 = 20736
Step 145: 20736 + 144 = 20880
Step 146: 20880 + 144 = 21024
Step 147: 21024 + 144 = 21168
Step 148: 21168 + 144 = 21312
Step 149: 21312 + 144 = 21456
Step 150: 21456 + 144 = 21600
Step 151: 21600 + 144 = 21744
Step 152: 21744 + 144 = 21888
Step 153: 21888 + 144 = 22032
Step 154: 22032 + 144 = 22176
Step 155: 22176 + 144 = 22320
Step 156: 22320 + 144 = 22464
Step 157: 22464 + 144 = 22608
Step 158: 22608 + 144 = 22752
Step 159: 22752 + 144 = 22896
Step 160: 22896 + 144 = 23040
Step 161: 23040 + 144 = 23184
Step 162: 23184 + 144 = 23328
Step 163: 23328 + 144 = 23472
Step 164: 23472 + 144 = 23616
Step 165: 23616 + 144 = 23760
Step 166: 23760 + 144 = 23904
Step 167: 23904 + 144 = 24048
Step 168: 24048 + 144 = 24192
Step 169: 24192 + 144 = 24336
Step 170: 24336 + 144 = 24480
Step 171: 24480 + 144 = 24624
Step 172: 24624 + 144 = 24768
Step 173: 24768 + 144 = 24912
Step 174: 24912 + 144 = 25056
Step 175: 25056 + 144 = 25200
Step 176: 25200 + 144 = 25344
Step 177: 25344 + 144 = 25488
Step 178: 25488 + 144 = 25632
Step 179: 25632 + 144 = 25776
Step 180: 25776 + 144 = 25920
Step 181: 25920 + 144 = 26064
Step 182: 26064 + 144 = 26208
Step 183: 26208 + 144 = 26352
Step 184: 26352 + 144 = 26496
Step 185: 26496 + 144 = 26640
Step 186: 26640 + 144 = 26784
Step 187: 26784 + 144 = 26928
Step 188: 26928 + 144 = 27072
Step 189: 27072 + 144 = 27216
Step 190: 27216 + 144 = 27360
Step 191: 27360 + 144 = 27504
Step 192: 27504 + 144 = 27648
Step 193: 27648 + 144 = 27792
Step 194: 27792 + 144 = 27936
Step 195: 27936 + 144 = 28080
Step 196: 28080 + 144 = 28224
Step 197: 28224 + 144 = 28368
Step 198: 28368 + 144 = 28512
Step 199: 28512 + 144 = 28656
Step 200: 28656 + 144 = 28800
Step 201: 28800 + 144 = 28944
Step 202: 28944 + 144 = 29088
Step 203: 29088 + 144 = 29232
Step 204: 29232 + 144 = 29376
Step 205: 29376 + 144 = 29520
Step 206: 29520 + 144 = 29664
Step 207: 29664 + 144 = 29808
Step 208: 29808 + 144 = 29952
Step 209: 29952 + 144 = 30096
Step 210: 30096 + 144 = 30240
Step 211: 30240 + 144 = 30384
Step 212: 30384 + 144 = 30528
Step 213: 30528 + 144 = 30672
Step 214: 30672 + 144 = 30816
Step 215: 30816 + 144 = 30960
Step 216: 30960 + 144 = 31104
Step 217: 31104 + 144 = 31248
Step 218: 31248 + 144 = 31392
Step 219: 31392 + 144 = 31536
Step 220: 31536 + 144 = 31680
Step 221: 31680 + 144 = 31824
Step 222: 31824 + 144 = 31968
Step 223: 31968 + 144 = 32112
Step 224: 32112 + 144 = 32256
Step 225: 32256 + 144 = 32400
Step 226: 32400 + 144 = 32544
Step 227: 32544 + 144 = 32688
Step 228: 32688 + 144 = 32832
Step 229: 32832 + 144 = 32976
Step 230: 32976 + 144 = 33120
Step 231: 33120 + 144 = 33264
Step 232: 33264 + 144 = 33408
Step 233: 33408 + 144 = 33552
Step 234: 33552 + 144 = 33696
Step 235: 33696 + 144 = 33840
Step 236: 33840 + 144 = 33984
Step 237: 33984 + 144 = 34128
Step 238: 34128 + 144 = 34272
Step 239: 34272 + 144 = 34416
Step 240: 34416 + 144 = 34560
Step 241: 34560 + 144 = 34704
Step 242: 34704 + 144 = 34848
Step 243: 34848 + 144 = 34992
Step 244: 34992 + 144 = 35136
Step 245: 35136 + 144 = 35280
Step 246: 35280 + 144 = 35424
Step 247: 35424 + 144 = 35568
Step 248: 35568 + 144 = 35712
Step 249: 35712 + 144 = 35856
Step 250: 35856 + 144 = 36000
Step 251: 36000 + 144 = 36144
Step 252: 36144 + 144 = 36288
Step 253: 36288 + 144 = 36432
Step 254: 36432 + 144 = 36576
Step 255: 36576 + 144 = 36720
Step 256: 36720 + 144 = 36864
Step 257: 36864 + 144 = 37008
Step 258: 37008 + 144 = 37152
Step 259: 37152 + 144 = 37296
Step 260: 37296 + 144 = 37440
Step 261: 37440 + 144 = 37584
Step 262: 37584 + 144 = 37728
Step 263: 37728 + 144 = 37872
Step 264: 37872 + 144 = 38016
Step 265: 38016 + 144 = 38160
Step 266: 38160 + 144 = 38304
Step 267: 38304 + 144 = 38448
Step 268: 38448 + 144 = 38592
Step 269: 38592 + 144 = 38736
Step 270: 38736 + 144 = 38880
Step 271: 38880 + 144 = 39024
Step 272: 39024 + 144 = 39168
Step 273: 39168 + 144 = 39312
Step 274: 39312 + 144 = 39456
Step 275: 39456 + 144 = 39600
Step 276: 39600 + 144 = 39744
Step 277: 39744 + 144 = 39888
Step 278: 39888 + 144 = 40032
Step 279: 40032 + 144 = 40176
Step 280: 40176 + 144 = 40320
Step 281: 40320 + 144 = 40464
Step 282: 40464 + 144 = 40608
Step 283: 40608 + 144 = 40752
Step 284: 40752 + 144 = 40896
Step 285: 40896 + 144 = 41040
Step 286: 41040 + 144 = 41184
Step 287: 41184 + 144 = 41328
Step 288: 41328 + 144 = 41472
Step 289: 41472 + 144 = 41616
Step 290: 41616 + 144 = 41760
Step 291: 41760 + 144 = 41904
Step 292: 41904 + 144 = 42048
Step 293: 42048 + 144 = 42192
Step 294: 42192 + 144 = 42336
Step 295: 42336 + 144 = 42480
Step 296: 42480 + 144 = 42624
Step 297: 42624 + 144 = 42768
Step 298: 42768 + 144 = 42912
Step 299: 42912 + 144 = 43056
Step 300: 43056 + 144 = 43200
Step 301: 43200 + 144 = 43344
Step 302: 43344 + 144 = 43488
Step 303: 43488 + 144 = 43632
Step 304: 43632 + 144 = 43776
Step 305: 43776 + 144 = 43920
Step 306: 43920 + 144 = 44064
Step 307: 44064 + 144 = 44208
Step 308: 44208 + 144 = 44352
Step 309: 44352 + 144 = 44496
Step 310: 44496 + 144 = 44640
Step 311: 44640 + 144 = 44784
Step 312: 44784 + 144 = 44928
Step 313: 44928 + 144 = 45072
Step 314: 45072 + 144 = 45216
Step 315: 45216 + 144 = 45360
Step 316: 45360 + 144 = 45504

So, 144*316 = 45504