Let's roll up our sleeves and solve this. We have 689 and we're going to multiply it by 328, essentially adding 689 to itself 328 times.
Step 1: 0 + 689 = 689
Step 2: 689 + 689 = 1378
Step 3: 1378 + 689 = 2067
Step 4: 2067 + 689 = 2756
Step 5: 2756 + 689 = 3445
Step 6: 3445 + 689 = 4134
Step 7: 4134 + 689 = 4823
Step 8: 4823 + 689 = 5512
Step 9: 5512 + 689 = 6201
Step 10: 6201 + 689 = 6890
Step 11: 6890 + 689 = 7579
Step 12: 7579 + 689 = 8268
Step 13: 8268 + 689 = 8957
Step 14: 8957 + 689 = 9646
Step 15: 9646 + 689 = 10335
Step 16: 10335 + 689 = 11024
Step 17: 11024 + 689 = 11713
Step 18: 11713 + 689 = 12402
Step 19: 12402 + 689 = 13091
Step 20: 13091 + 689 = 13780
Step 21: 13780 + 689 = 14469
Step 22: 14469 + 689 = 15158
Step 23: 15158 + 689 = 15847
Step 24: 15847 + 689 = 16536
Step 25: 16536 + 689 = 17225
Step 26: 17225 + 689 = 17914
Step 27: 17914 + 689 = 18603
Step 28: 18603 + 689 = 19292
Step 29: 19292 + 689 = 19981
Step 30: 19981 + 689 = 20670
Step 31: 20670 + 689 = 21359
Step 32: 21359 + 689 = 22048
Step 33: 22048 + 689 = 22737
Step 34: 22737 + 689 = 23426
Step 35: 23426 + 689 = 24115
Step 36: 24115 + 689 = 24804
Step 37: 24804 + 689 = 25493
Step 38: 25493 + 689 = 26182
Step 39: 26182 + 689 = 26871
Step 40: 26871 + 689 = 27560
Step 41: 27560 + 689 = 28249
Step 42: 28249 + 689 = 28938
Step 43: 28938 + 689 = 29627
Step 44: 29627 + 689 = 30316
Step 45: 30316 + 689 = 31005
Step 46: 31005 + 689 = 31694
Step 47: 31694 + 689 = 32383
Step 48: 32383 + 689 = 33072
Step 49: 33072 + 689 = 33761
Step 50: 33761 + 689 = 34450
Step 51: 34450 + 689 = 35139
Step 52: 35139 + 689 = 35828
Step 53: 35828 + 689 = 36517
Step 54: 36517 + 689 = 37206
Step 55: 37206 + 689 = 37895
Step 56: 37895 + 689 = 38584
Step 57: 38584 + 689 = 39273
Step 58: 39273 + 689 = 39962
Step 59: 39962 + 689 = 40651
Step 60: 40651 + 689 = 41340
Step 61: 41340 + 689 = 42029
Step 62: 42029 + 689 = 42718
Step 63: 42718 + 689 = 43407
Step 64: 43407 + 689 = 44096
Step 65: 44096 + 689 = 44785
Step 66: 44785 + 689 = 45474
Step 67: 45474 + 689 = 46163
Step 68: 46163 + 689 = 46852
Step 69: 46852 + 689 = 47541
Step 70: 47541 + 689 = 48230
Step 71: 48230 + 689 = 48919
Step 72: 48919 + 689 = 49608
Step 73: 49608 + 689 = 50297
Step 74: 50297 + 689 = 50986
Step 75: 50986 + 689 = 51675
Step 76: 51675 + 689 = 52364
Step 77: 52364 + 689 = 53053
Step 78: 53053 + 689 = 53742
Step 79: 53742 + 689 = 54431
Step 80: 54431 + 689 = 55120
Step 81: 55120 + 689 = 55809
Step 82: 55809 + 689 = 56498
Step 83: 56498 + 689 = 57187
Step 84: 57187 + 689 = 57876
Step 85: 57876 + 689 = 58565
Step 86: 58565 + 689 = 59254
Step 87: 59254 + 689 = 59943
Step 88: 59943 + 689 = 60632
Step 89: 60632 + 689 = 61321
Step 90: 61321 + 689 = 62010
Step 91: 62010 + 689 = 62699
Step 92: 62699 + 689 = 63388
Step 93: 63388 + 689 = 64077
Step 94: 64077 + 689 = 64766
Step 95: 64766 + 689 = 65455
Step 96: 65455 + 689 = 66144
Step 97: 66144 + 689 = 66833
Step 98: 66833 + 689 = 67522
Step 99: 67522 + 689 = 68211
Step 100: 68211 + 689 = 68900
Step 101: 68900 + 689 = 69589
Step 102: 69589 + 689 = 70278
Step 103: 70278 + 689 = 70967
Step 104: 70967 + 689 = 71656
Step 105: 71656 + 689 = 72345
Step 106: 72345 + 689 = 73034
Step 107: 73034 + 689 = 73723
Step 108: 73723 + 689 = 74412
Step 109: 74412 + 689 = 75101
Step 110: 75101 + 689 = 75790
Step 111: 75790 + 689 = 76479
Step 112: 76479 + 689 = 77168
Step 113: 77168 + 689 = 77857
Step 114: 77857 + 689 = 78546
Step 115: 78546 + 689 = 79235
Step 116: 79235 + 689 = 79924
Step 117: 79924 + 689 = 80613
Step 118: 80613 + 689 = 81302
Step 119: 81302 + 689 = 81991
Step 120: 81991 + 689 = 82680
Step 121: 82680 + 689 = 83369
Step 122: 83369 + 689 = 84058
Step 123: 84058 + 689 = 84747
Step 124: 84747 + 689 = 85436
Step 125: 85436 + 689 = 86125
Step 126: 86125 + 689 = 86814
Step 127: 86814 + 689 = 87503
Step 128: 87503 + 689 = 88192
Step 129: 88192 + 689 = 88881
Step 130: 88881 + 689 = 89570
Step 131: 89570 + 689 = 90259
Step 132: 90259 + 689 = 90948
Step 133: 90948 + 689 = 91637
Step 134: 91637 + 689 = 92326
Step 135: 92326 + 689 = 93015
Step 136: 93015 + 689 = 93704
Step 137: 93704 + 689 = 94393
Step 138: 94393 + 689 = 95082
Step 139: 95082 + 689 = 95771
Step 140: 95771 + 689 = 96460
Step 141: 96460 + 689 = 97149
Step 142: 97149 + 689 = 97838
Step 143: 97838 + 689 = 98527
Step 144: 98527 + 689 = 99216
Step 145: 99216 + 689 = 99905
Step 146: 99905 + 689 = 100594
Step 147: 100594 + 689 = 101283
Step 148: 101283 + 689 = 101972
Step 149: 101972 + 689 = 102661
Step 150: 102661 + 689 = 103350
Step 151: 103350 + 689 = 104039
Step 152: 104039 + 689 = 104728
Step 153: 104728 + 689 = 105417
Step 154: 105417 + 689 = 106106
Step 155: 106106 + 689 = 106795
Step 156: 106795 + 689 = 107484
Step 157: 107484 + 689 = 108173
Step 158: 108173 + 689 = 108862
Step 159: 108862 + 689 = 109551
Step 160: 109551 + 689 = 110240
Step 161: 110240 + 689 = 110929
Step 162: 110929 + 689 = 111618
Step 163: 111618 + 689 = 112307
Step 164: 112307 + 689 = 112996
Step 165: 112996 + 689 = 113685
Step 166: 113685 + 689 = 114374
Step 167: 114374 + 689 = 115063
Step 168: 115063 + 689 = 115752
Step 169: 115752 + 689 = 116441
Step 170: 116441 + 689 = 117130
Step 171: 117130 + 689 = 117819
Step 172: 117819 + 689 = 118508
Step 173: 118508 + 689 = 119197
Step 174: 119197 + 689 = 119886
Step 175: 119886 + 689 = 120575
Step 176: 120575 + 689 = 121264
Step 177: 121264 + 689 = 121953
Step 178: 121953 + 689 = 122642
Step 179: 122642 + 689 = 123331
Step 180: 123331 + 689 = 124020
Step 181: 124020 + 689 = 124709
Step 182: 124709 + 689 = 125398
Step 183: 125398 + 689 = 126087
Step 184: 126087 + 689 = 126776
Step 185: 126776 + 689 = 127465
Step 186: 127465 + 689 = 128154
Step 187: 128154 + 689 = 128843
Step 188: 128843 + 689 = 129532
Step 189: 129532 + 689 = 130221
Step 190: 130221 + 689 = 130910
Step 191: 130910 + 689 = 131599
Step 192: 131599 + 689 = 132288
Step 193: 132288 + 689 = 132977
Step 194: 132977 + 689 = 133666
Step 195: 133666 + 689 = 134355
Step 196: 134355 + 689 = 135044
Step 197: 135044 + 689 = 135733
Step 198: 135733 + 689 = 136422
Step 199: 136422 + 689 = 137111
Step 200: 137111 + 689 = 137800
Step 201: 137800 + 689 = 138489
Step 202: 138489 + 689 = 139178
Step 203: 139178 + 689 = 139867
Step 204: 139867 + 689 = 140556
Step 205: 140556 + 689 = 141245
Step 206: 141245 + 689 = 141934
Step 207: 141934 + 689 = 142623
Step 208: 142623 + 689 = 143312
Step 209: 143312 + 689 = 144001
Step 210: 144001 + 689 = 144690
Step 211: 144690 + 689 = 145379
Step 212: 145379 + 689 = 146068
Step 213: 146068 + 689 = 146757
Step 214: 146757 + 689 = 147446
Step 215: 147446 + 689 = 148135
Step 216: 148135 + 689 = 148824
Step 217: 148824 + 689 = 149513
Step 218: 149513 + 689 = 150202
Step 219: 150202 + 689 = 150891
Step 220: 150891 + 689 = 151580
Step 221: 151580 + 689 = 152269
Step 222: 152269 + 689 = 152958
Step 223: 152958 + 689 = 153647
Step 224: 153647 + 689 = 154336
Step 225: 154336 + 689 = 155025
Step 226: 155025 + 689 = 155714
Step 227: 155714 + 689 = 156403
Step 228: 156403 + 689 = 157092
Step 229: 157092 + 689 = 157781
Step 230: 157781 + 689 = 158470
Step 231: 158470 + 689 = 159159
Step 232: 159159 + 689 = 159848
Step 233: 159848 + 689 = 160537
Step 234: 160537 + 689 = 161226
Step 235: 161226 + 689 = 161915
Step 236: 161915 + 689 = 162604
Step 237: 162604 + 689 = 163293
Step 238: 163293 + 689 = 163982
Step 239: 163982 + 689 = 164671
Step 240: 164671 + 689 = 165360
Step 241: 165360 + 689 = 166049
Step 242: 166049 + 689 = 166738
Step 243: 166738 + 689 = 167427
Step 244: 167427 + 689 = 168116
Step 245: 168116 + 689 = 168805
Step 246: 168805 + 689 = 169494
Step 247: 169494 + 689 = 170183
Step 248: 170183 + 689 = 170872
Step 249: 170872 + 689 = 171561
Step 250: 171561 + 689 = 172250
Step 251: 172250 + 689 = 172939
Step 252: 172939 + 689 = 173628
Step 253: 173628 + 689 = 174317
Step 254: 174317 + 689 = 175006
Step 255: 175006 + 689 = 175695
Step 256: 175695 + 689 = 176384
Step 257: 176384 + 689 = 177073
Step 258: 177073 + 689 = 177762
Step 259: 177762 + 689 = 178451
Step 260: 178451 + 689 = 179140
Step 261: 179140 + 689 = 179829
Step 262: 179829 + 689 = 180518
Step 263: 180518 + 689 = 181207
Step 264: 181207 + 689 = 181896
Step 265: 181896 + 689 = 182585
Step 266: 182585 + 689 = 183274
Step 267: 183274 + 689 = 183963
Step 268: 183963 + 689 = 184652
Step 269: 184652 + 689 = 185341
Step 270: 185341 + 689 = 186030
Step 271: 186030 + 689 = 186719
Step 272: 186719 + 689 = 187408
Step 273: 187408 + 689 = 188097
Step 274: 188097 + 689 = 188786
Step 275: 188786 + 689 = 189475
Step 276: 189475 + 689 = 190164
Step 277: 190164 + 689 = 190853
Step 278: 190853 + 689 = 191542
Step 279: 191542 + 689 = 192231
Step 280: 192231 + 689 = 192920
Step 281: 192920 + 689 = 193609
Step 282: 193609 + 689 = 194298
Step 283: 194298 + 689 = 194987
Step 284: 194987 + 689 = 195676
Step 285: 195676 + 689 = 196365
Step 286: 196365 + 689 = 197054
Step 287: 197054 + 689 = 197743
Step 288: 197743 + 689 = 198432
Step 289: 198432 + 689 = 199121
Step 290: 199121 + 689 = 199810
Step 291: 199810 + 689 = 200499
Step 292: 200499 + 689 = 201188
Step 293: 201188 + 689 = 201877
Step 294: 201877 + 689 = 202566
Step 295: 202566 + 689 = 203255
Step 296: 203255 + 689 = 203944
Step 297: 203944 + 689 = 204633
Step 298: 204633 + 689 = 205322
Step 299: 205322 + 689 = 206011
Step 300: 206011 + 689 = 206700
Step 301: 206700 + 689 = 207389
Step 302: 207389 + 689 = 208078
Step 303: 208078 + 689 = 208767
Step 304: 208767 + 689 = 209456
Step 305: 209456 + 689 = 210145
Step 306: 210145 + 689 = 210834
Step 307: 210834 + 689 = 211523
Step 308: 211523 + 689 = 212212
Step 309: 212212 + 689 = 212901
Step 310: 212901 + 689 = 213590
Step 311: 213590 + 689 = 214279
Step 312: 214279 + 689 = 214968
Step 313: 214968 + 689 = 215657
Step 314: 215657 + 689 = 216346
Step 315: 216346 + 689 = 217035
Step 316: 217035 + 689 = 217724
Step 317: 217724 + 689 = 218413
Step 318: 218413 + 689 = 219102
Step 319: 219102 + 689 = 219791
Step 320: 219791 + 689 = 220480
Step 321: 220480 + 689 = 221169
Step 322: 221169 + 689 = 221858
Step 323: 221858 + 689 = 222547
Step 324: 222547 + 689 = 223236
Step 325: 223236 + 689 = 223925
Step 326: 223925 + 689 = 224614
Step 327: 224614 + 689 = 225303
Step 328: 225303 + 689 = 225992

So, 689*328 = 225992