Alright, let's solve this math problem step by step. First, we have the number 728. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 320. So, we're going to take the number 728 and add it to itself 320 times.
Step 1: 0 + 728 = 728
Step 2: 728 + 728 = 1456
Step 3: 1456 + 728 = 2184
Step 4: 2184 + 728 = 2912
Step 5: 2912 + 728 = 3640
Step 6: 3640 + 728 = 4368
Step 7: 4368 + 728 = 5096
Step 8: 5096 + 728 = 5824
Step 9: 5824 + 728 = 6552
Step 10: 6552 + 728 = 7280
Step 11: 7280 + 728 = 8008
Step 12: 8008 + 728 = 8736
Step 13: 8736 + 728 = 9464
Step 14: 9464 + 728 = 10192
Step 15: 10192 + 728 = 10920
Step 16: 10920 + 728 = 11648
Step 17: 11648 + 728 = 12376
Step 18: 12376 + 728 = 13104
Step 19: 13104 + 728 = 13832
Step 20: 13832 + 728 = 14560
Step 21: 14560 + 728 = 15288
Step 22: 15288 + 728 = 16016
Step 23: 16016 + 728 = 16744
Step 24: 16744 + 728 = 17472
Step 25: 17472 + 728 = 18200
Step 26: 18200 + 728 = 18928
Step 27: 18928 + 728 = 19656
Step 28: 19656 + 728 = 20384
Step 29: 20384 + 728 = 21112
Step 30: 21112 + 728 = 21840
Step 31: 21840 + 728 = 22568
Step 32: 22568 + 728 = 23296
Step 33: 23296 + 728 = 24024
Step 34: 24024 + 728 = 24752
Step 35: 24752 + 728 = 25480
Step 36: 25480 + 728 = 26208
Step 37: 26208 + 728 = 26936
Step 38: 26936 + 728 = 27664
Step 39: 27664 + 728 = 28392
Step 40: 28392 + 728 = 29120
Step 41: 29120 + 728 = 29848
Step 42: 29848 + 728 = 30576
Step 43: 30576 + 728 = 31304
Step 44: 31304 + 728 = 32032
Step 45: 32032 + 728 = 32760
Step 46: 32760 + 728 = 33488
Step 47: 33488 + 728 = 34216
Step 48: 34216 + 728 = 34944
Step 49: 34944 + 728 = 35672
Step 50: 35672 + 728 = 36400
Step 51: 36400 + 728 = 37128
Step 52: 37128 + 728 = 37856
Step 53: 37856 + 728 = 38584
Step 54: 38584 + 728 = 39312
Step 55: 39312 + 728 = 40040
Step 56: 40040 + 728 = 40768
Step 57: 40768 + 728 = 41496
Step 58: 41496 + 728 = 42224
Step 59: 42224 + 728 = 42952
Step 60: 42952 + 728 = 43680
Step 61: 43680 + 728 = 44408
Step 62: 44408 + 728 = 45136
Step 63: 45136 + 728 = 45864
Step 64: 45864 + 728 = 46592
Step 65: 46592 + 728 = 47320
Step 66: 47320 + 728 = 48048
Step 67: 48048 + 728 = 48776
Step 68: 48776 + 728 = 49504
Step 69: 49504 + 728 = 50232
Step 70: 50232 + 728 = 50960
Step 71: 50960 + 728 = 51688
Step 72: 51688 + 728 = 52416
Step 73: 52416 + 728 = 53144
Step 74: 53144 + 728 = 53872
Step 75: 53872 + 728 = 54600
Step 76: 54600 + 728 = 55328
Step 77: 55328 + 728 = 56056
Step 78: 56056 + 728 = 56784
Step 79: 56784 + 728 = 57512
Step 80: 57512 + 728 = 58240
Step 81: 58240 + 728 = 58968
Step 82: 58968 + 728 = 59696
Step 83: 59696 + 728 = 60424
Step 84: 60424 + 728 = 61152
Step 85: 61152 + 728 = 61880
Step 86: 61880 + 728 = 62608
Step 87: 62608 + 728 = 63336
Step 88: 63336 + 728 = 64064
Step 89: 64064 + 728 = 64792
Step 90: 64792 + 728 = 65520
Step 91: 65520 + 728 = 66248
Step 92: 66248 + 728 = 66976
Step 93: 66976 + 728 = 67704
Step 94: 67704 + 728 = 68432
Step 95: 68432 + 728 = 69160
Step 96: 69160 + 728 = 69888
Step 97: 69888 + 728 = 70616
Step 98: 70616 + 728 = 71344
Step 99: 71344 + 728 = 72072
Step 100: 72072 + 728 = 72800
Step 101: 72800 + 728 = 73528
Step 102: 73528 + 728 = 74256
Step 103: 74256 + 728 = 74984
Step 104: 74984 + 728 = 75712
Step 105: 75712 + 728 = 76440
Step 106: 76440 + 728 = 77168
Step 107: 77168 + 728 = 77896
Step 108: 77896 + 728 = 78624
Step 109: 78624 + 728 = 79352
Step 110: 79352 + 728 = 80080
Step 111: 80080 + 728 = 80808
Step 112: 80808 + 728 = 81536
Step 113: 81536 + 728 = 82264
Step 114: 82264 + 728 = 82992
Step 115: 82992 + 728 = 83720
Step 116: 83720 + 728 = 84448
Step 117: 84448 + 728 = 85176
Step 118: 85176 + 728 = 85904
Step 119: 85904 + 728 = 86632
Step 120: 86632 + 728 = 87360
Step 121: 87360 + 728 = 88088
Step 122: 88088 + 728 = 88816
Step 123: 88816 + 728 = 89544
Step 124: 89544 + 728 = 90272
Step 125: 90272 + 728 = 91000
Step 126: 91000 + 728 = 91728
Step 127: 91728 + 728 = 92456
Step 128: 92456 + 728 = 93184
Step 129: 93184 + 728 = 93912
Step 130: 93912 + 728 = 94640
Step 131: 94640 + 728 = 95368
Step 132: 95368 + 728 = 96096
Step 133: 96096 + 728 = 96824
Step 134: 96824 + 728 = 97552
Step 135: 97552 + 728 = 98280
Step 136: 98280 + 728 = 99008
Step 137: 99008 + 728 = 99736
Step 138: 99736 + 728 = 100464
Step 139: 100464 + 728 = 101192
Step 140: 101192 + 728 = 101920
Step 141: 101920 + 728 = 102648
Step 142: 102648 + 728 = 103376
Step 143: 103376 + 728 = 104104
Step 144: 104104 + 728 = 104832
Step 145: 104832 + 728 = 105560
Step 146: 105560 + 728 = 106288
Step 147: 106288 + 728 = 107016
Step 148: 107016 + 728 = 107744
Step 149: 107744 + 728 = 108472
Step 150: 108472 + 728 = 109200
Step 151: 109200 + 728 = 109928
Step 152: 109928 + 728 = 110656
Step 153: 110656 + 728 = 111384
Step 154: 111384 + 728 = 112112
Step 155: 112112 + 728 = 112840
Step 156: 112840 + 728 = 113568
Step 157: 113568 + 728 = 114296
Step 158: 114296 + 728 = 115024
Step 159: 115024 + 728 = 115752
Step 160: 115752 + 728 = 116480
Step 161: 116480 + 728 = 117208
Step 162: 117208 + 728 = 117936
Step 163: 117936 + 728 = 118664
Step 164: 118664 + 728 = 119392
Step 165: 119392 + 728 = 120120
Step 166: 120120 + 728 = 120848
Step 167: 120848 + 728 = 121576
Step 168: 121576 + 728 = 122304
Step 169: 122304 + 728 = 123032
Step 170: 123032 + 728 = 123760
Step 171: 123760 + 728 = 124488
Step 172: 124488 + 728 = 125216
Step 173: 125216 + 728 = 125944
Step 174: 125944 + 728 = 126672
Step 175: 126672 + 728 = 127400
Step 176: 127400 + 728 = 128128
Step 177: 128128 + 728 = 128856
Step 178: 128856 + 728 = 129584
Step 179: 129584 + 728 = 130312
Step 180: 130312 + 728 = 131040
Step 181: 131040 + 728 = 131768
Step 182: 131768 + 728 = 132496
Step 183: 132496 + 728 = 133224
Step 184: 133224 + 728 = 133952
Step 185: 133952 + 728 = 134680
Step 186: 134680 + 728 = 135408
Step 187: 135408 + 728 = 136136
Step 188: 136136 + 728 = 136864
Step 189: 136864 + 728 = 137592
Step 190: 137592 + 728 = 138320
Step 191: 138320 + 728 = 139048
Step 192: 139048 + 728 = 139776
Step 193: 139776 + 728 = 140504
Step 194: 140504 + 728 = 141232
Step 195: 141232 + 728 = 141960
Step 196: 141960 + 728 = 142688
Step 197: 142688 + 728 = 143416
Step 198: 143416 + 728 = 144144
Step 199: 144144 + 728 = 144872
Step 200: 144872 + 728 = 145600
Step 201: 145600 + 728 = 146328
Step 202: 146328 + 728 = 147056
Step 203: 147056 + 728 = 147784
Step 204: 147784 + 728 = 148512
Step 205: 148512 + 728 = 149240
Step 206: 149240 + 728 = 149968
Step 207: 149968 + 728 = 150696
Step 208: 150696 + 728 = 151424
Step 209: 151424 + 728 = 152152
Step 210: 152152 + 728 = 152880
Step 211: 152880 + 728 = 153608
Step 212: 153608 + 728 = 154336
Step 213: 154336 + 728 = 155064
Step 214: 155064 + 728 = 155792
Step 215: 155792 + 728 = 156520
Step 216: 156520 + 728 = 157248
Step 217: 157248 + 728 = 157976
Step 218: 157976 + 728 = 158704
Step 219: 158704 + 728 = 159432
Step 220: 159432 + 728 = 160160
Step 221: 160160 + 728 = 160888
Step 222: 160888 + 728 = 161616
Step 223: 161616 + 728 = 162344
Step 224: 162344 + 728 = 163072
Step 225: 163072 + 728 = 163800
Step 226: 163800 + 728 = 164528
Step 227: 164528 + 728 = 165256
Step 228: 165256 + 728 = 165984
Step 229: 165984 + 728 = 166712
Step 230: 166712 + 728 = 167440
Step 231: 167440 + 728 = 168168
Step 232: 168168 + 728 = 168896
Step 233: 168896 + 728 = 169624
Step 234: 169624 + 728 = 170352
Step 235: 170352 + 728 = 171080
Step 236: 171080 + 728 = 171808
Step 237: 171808 + 728 = 172536
Step 238: 172536 + 728 = 173264
Step 239: 173264 + 728 = 173992
Step 240: 173992 + 728 = 174720
Step 241: 174720 + 728 = 175448
Step 242: 175448 + 728 = 176176
Step 243: 176176 + 728 = 176904
Step 244: 176904 + 728 = 177632
Step 245: 177632 + 728 = 178360
Step 246: 178360 + 728 = 179088
Step 247: 179088 + 728 = 179816
Step 248: 179816 + 728 = 180544
Step 249: 180544 + 728 = 181272
Step 250: 181272 + 728 = 182000
Step 251: 182000 + 728 = 182728
Step 252: 182728 + 728 = 183456
Step 253: 183456 + 728 = 184184
Step 254: 184184 + 728 = 184912
Step 255: 184912 + 728 = 185640
Step 256: 185640 + 728 = 186368
Step 257: 186368 + 728 = 187096
Step 258: 187096 + 728 = 187824
Step 259: 187824 + 728 = 188552
Step 260: 188552 + 728 = 189280
Step 261: 189280 + 728 = 190008
Step 262: 190008 + 728 = 190736
Step 263: 190736 + 728 = 191464
Step 264: 191464 + 728 = 192192
Step 265: 192192 + 728 = 192920
Step 266: 192920 + 728 = 193648
Step 267: 193648 + 728 = 194376
Step 268: 194376 + 728 = 195104
Step 269: 195104 + 728 = 195832
Step 270: 195832 + 728 = 196560
Step 271: 196560 + 728 = 197288
Step 272: 197288 + 728 = 198016
Step 273: 198016 + 728 = 198744
Step 274: 198744 + 728 = 199472
Step 275: 199472 + 728 = 200200
Step 276: 200200 + 728 = 200928
Step 277: 200928 + 728 = 201656
Step 278: 201656 + 728 = 202384
Step 279: 202384 + 728 = 203112
Step 280: 203112 + 728 = 203840
Step 281: 203840 + 728 = 204568
Step 282: 204568 + 728 = 205296
Step 283: 205296 + 728 = 206024
Step 284: 206024 + 728 = 206752
Step 285: 206752 + 728 = 207480
Step 286: 207480 + 728 = 208208
Step 287: 208208 + 728 = 208936
Step 288: 208936 + 728 = 209664
Step 289: 209664 + 728 = 210392
Step 290: 210392 + 728 = 211120
Step 291: 211120 + 728 = 211848
Step 292: 211848 + 728 = 212576
Step 293: 212576 + 728 = 213304
Step 294: 213304 + 728 = 214032
Step 295: 214032 + 728 = 214760
Step 296: 214760 + 728 = 215488
Step 297: 215488 + 728 = 216216
Step 298: 216216 + 728 = 216944
Step 299: 216944 + 728 = 217672
Step 300: 217672 + 728 = 218400
Step 301: 218400 + 728 = 219128
Step 302: 219128 + 728 = 219856
Step 303: 219856 + 728 = 220584
Step 304: 220584 + 728 = 221312
Step 305: 221312 + 728 = 222040
Step 306: 222040 + 728 = 222768
Step 307: 222768 + 728 = 223496
Step 308: 223496 + 728 = 224224
Step 309: 224224 + 728 = 224952
Step 310: 224952 + 728 = 225680
Step 311: 225680 + 728 = 226408
Step 312: 226408 + 728 = 227136
Step 313: 227136 + 728 = 227864
Step 314: 227864 + 728 = 228592
Step 315: 228592 + 728 = 229320
Step 316: 229320 + 728 = 230048
Step 317: 230048 + 728 = 230776
Step 318: 230776 + 728 = 231504
Step 319: 231504 + 728 = 232232
Step 320: 232232 + 728 = 232960

So, 728*320 = 232960