Alright, let's solve this math problem step by step. First, we have the number 390. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 323. So, we're going to take the number 390 and add it to itself 323 times.
Step 1: 0 + 390 = 390
Step 2: 390 + 390 = 780
Step 3: 780 + 390 = 1170
Step 4: 1170 + 390 = 1560
Step 5: 1560 + 390 = 1950
Step 6: 1950 + 390 = 2340
Step 7: 2340 + 390 = 2730
Step 8: 2730 + 390 = 3120
Step 9: 3120 + 390 = 3510
Step 10: 3510 + 390 = 3900
Step 11: 3900 + 390 = 4290
Step 12: 4290 + 390 = 4680
Step 13: 4680 + 390 = 5070
Step 14: 5070 + 390 = 5460
Step 15: 5460 + 390 = 5850
Step 16: 5850 + 390 = 6240
Step 17: 6240 + 390 = 6630
Step 18: 6630 + 390 = 7020
Step 19: 7020 + 390 = 7410
Step 20: 7410 + 390 = 7800
Step 21: 7800 + 390 = 8190
Step 22: 8190 + 390 = 8580
Step 23: 8580 + 390 = 8970
Step 24: 8970 + 390 = 9360
Step 25: 9360 + 390 = 9750
Step 26: 9750 + 390 = 10140
Step 27: 10140 + 390 = 10530
Step 28: 10530 + 390 = 10920
Step 29: 10920 + 390 = 11310
Step 30: 11310 + 390 = 11700
Step 31: 11700 + 390 = 12090
Step 32: 12090 + 390 = 12480
Step 33: 12480 + 390 = 12870
Step 34: 12870 + 390 = 13260
Step 35: 13260 + 390 = 13650
Step 36: 13650 + 390 = 14040
Step 37: 14040 + 390 = 14430
Step 38: 14430 + 390 = 14820
Step 39: 14820 + 390 = 15210
Step 40: 15210 + 390 = 15600
Step 41: 15600 + 390 = 15990
Step 42: 15990 + 390 = 16380
Step 43: 16380 + 390 = 16770
Step 44: 16770 + 390 = 17160
Step 45: 17160 + 390 = 17550
Step 46: 17550 + 390 = 17940
Step 47: 17940 + 390 = 18330
Step 48: 18330 + 390 = 18720
Step 49: 18720 + 390 = 19110
Step 50: 19110 + 390 = 19500
Step 51: 19500 + 390 = 19890
Step 52: 19890 + 390 = 20280
Step 53: 20280 + 390 = 20670
Step 54: 20670 + 390 = 21060
Step 55: 21060 + 390 = 21450
Step 56: 21450 + 390 = 21840
Step 57: 21840 + 390 = 22230
Step 58: 22230 + 390 = 22620
Step 59: 22620 + 390 = 23010
Step 60: 23010 + 390 = 23400
Step 61: 23400 + 390 = 23790
Step 62: 23790 + 390 = 24180
Step 63: 24180 + 390 = 24570
Step 64: 24570 + 390 = 24960
Step 65: 24960 + 390 = 25350
Step 66: 25350 + 390 = 25740
Step 67: 25740 + 390 = 26130
Step 68: 26130 + 390 = 26520
Step 69: 26520 + 390 = 26910
Step 70: 26910 + 390 = 27300
Step 71: 27300 + 390 = 27690
Step 72: 27690 + 390 = 28080
Step 73: 28080 + 390 = 28470
Step 74: 28470 + 390 = 28860
Step 75: 28860 + 390 = 29250
Step 76: 29250 + 390 = 29640
Step 77: 29640 + 390 = 30030
Step 78: 30030 + 390 = 30420
Step 79: 30420 + 390 = 30810
Step 80: 30810 + 390 = 31200
Step 81: 31200 + 390 = 31590
Step 82: 31590 + 390 = 31980
Step 83: 31980 + 390 = 32370
Step 84: 32370 + 390 = 32760
Step 85: 32760 + 390 = 33150
Step 86: 33150 + 390 = 33540
Step 87: 33540 + 390 = 33930
Step 88: 33930 + 390 = 34320
Step 89: 34320 + 390 = 34710
Step 90: 34710 + 390 = 35100
Step 91: 35100 + 390 = 35490
Step 92: 35490 + 390 = 35880
Step 93: 35880 + 390 = 36270
Step 94: 36270 + 390 = 36660
Step 95: 36660 + 390 = 37050
Step 96: 37050 + 390 = 37440
Step 97: 37440 + 390 = 37830
Step 98: 37830 + 390 = 38220
Step 99: 38220 + 390 = 38610
Step 100: 38610 + 390 = 39000
Step 101: 39000 + 390 = 39390
Step 102: 39390 + 390 = 39780
Step 103: 39780 + 390 = 40170
Step 104: 40170 + 390 = 40560
Step 105: 40560 + 390 = 40950
Step 106: 40950 + 390 = 41340
Step 107: 41340 + 390 = 41730
Step 108: 41730 + 390 = 42120
Step 109: 42120 + 390 = 42510
Step 110: 42510 + 390 = 42900
Step 111: 42900 + 390 = 43290
Step 112: 43290 + 390 = 43680
Step 113: 43680 + 390 = 44070
Step 114: 44070 + 390 = 44460
Step 115: 44460 + 390 = 44850
Step 116: 44850 + 390 = 45240
Step 117: 45240 + 390 = 45630
Step 118: 45630 + 390 = 46020
Step 119: 46020 + 390 = 46410
Step 120: 46410 + 390 = 46800
Step 121: 46800 + 390 = 47190
Step 122: 47190 + 390 = 47580
Step 123: 47580 + 390 = 47970
Step 124: 47970 + 390 = 48360
Step 125: 48360 + 390 = 48750
Step 126: 48750 + 390 = 49140
Step 127: 49140 + 390 = 49530
Step 128: 49530 + 390 = 49920
Step 129: 49920 + 390 = 50310
Step 130: 50310 + 390 = 50700
Step 131: 50700 + 390 = 51090
Step 132: 51090 + 390 = 51480
Step 133: 51480 + 390 = 51870
Step 134: 51870 + 390 = 52260
Step 135: 52260 + 390 = 52650
Step 136: 52650 + 390 = 53040
Step 137: 53040 + 390 = 53430
Step 138: 53430 + 390 = 53820
Step 139: 53820 + 390 = 54210
Step 140: 54210 + 390 = 54600
Step 141: 54600 + 390 = 54990
Step 142: 54990 + 390 = 55380
Step 143: 55380 + 390 = 55770
Step 144: 55770 + 390 = 56160
Step 145: 56160 + 390 = 56550
Step 146: 56550 + 390 = 56940
Step 147: 56940 + 390 = 57330
Step 148: 57330 + 390 = 57720
Step 149: 57720 + 390 = 58110
Step 150: 58110 + 390 = 58500
Step 151: 58500 + 390 = 58890
Step 152: 58890 + 390 = 59280
Step 153: 59280 + 390 = 59670
Step 154: 59670 + 390 = 60060
Step 155: 60060 + 390 = 60450
Step 156: 60450 + 390 = 60840
Step 157: 60840 + 390 = 61230
Step 158: 61230 + 390 = 61620
Step 159: 61620 + 390 = 62010
Step 160: 62010 + 390 = 62400
Step 161: 62400 + 390 = 62790
Step 162: 62790 + 390 = 63180
Step 163: 63180 + 390 = 63570
Step 164: 63570 + 390 = 63960
Step 165: 63960 + 390 = 64350
Step 166: 64350 + 390 = 64740
Step 167: 64740 + 390 = 65130
Step 168: 65130 + 390 = 65520
Step 169: 65520 + 390 = 65910
Step 170: 65910 + 390 = 66300
Step 171: 66300 + 390 = 66690
Step 172: 66690 + 390 = 67080
Step 173: 67080 + 390 = 67470
Step 174: 67470 + 390 = 67860
Step 175: 67860 + 390 = 68250
Step 176: 68250 + 390 = 68640
Step 177: 68640 + 390 = 69030
Step 178: 69030 + 390 = 69420
Step 179: 69420 + 390 = 69810
Step 180: 69810 + 390 = 70200
Step 181: 70200 + 390 = 70590
Step 182: 70590 + 390 = 70980
Step 183: 70980 + 390 = 71370
Step 184: 71370 + 390 = 71760
Step 185: 71760 + 390 = 72150
Step 186: 72150 + 390 = 72540
Step 187: 72540 + 390 = 72930
Step 188: 72930 + 390 = 73320
Step 189: 73320 + 390 = 73710
Step 190: 73710 + 390 = 74100
Step 191: 74100 + 390 = 74490
Step 192: 74490 + 390 = 74880
Step 193: 74880 + 390 = 75270
Step 194: 75270 + 390 = 75660
Step 195: 75660 + 390 = 76050
Step 196: 76050 + 390 = 76440
Step 197: 76440 + 390 = 76830
Step 198: 76830 + 390 = 77220
Step 199: 77220 + 390 = 77610
Step 200: 77610 + 390 = 78000
Step 201: 78000 + 390 = 78390
Step 202: 78390 + 390 = 78780
Step 203: 78780 + 390 = 79170
Step 204: 79170 + 390 = 79560
Step 205: 79560 + 390 = 79950
Step 206: 79950 + 390 = 80340
Step 207: 80340 + 390 = 80730
Step 208: 80730 + 390 = 81120
Step 209: 81120 + 390 = 81510
Step 210: 81510 + 390 = 81900
Step 211: 81900 + 390 = 82290
Step 212: 82290 + 390 = 82680
Step 213: 82680 + 390 = 83070
Step 214: 83070 + 390 = 83460
Step 215: 83460 + 390 = 83850
Step 216: 83850 + 390 = 84240
Step 217: 84240 + 390 = 84630
Step 218: 84630 + 390 = 85020
Step 219: 85020 + 390 = 85410
Step 220: 85410 + 390 = 85800
Step 221: 85800 + 390 = 86190
Step 222: 86190 + 390 = 86580
Step 223: 86580 + 390 = 86970
Step 224: 86970 + 390 = 87360
Step 225: 87360 + 390 = 87750
Step 226: 87750 + 390 = 88140
Step 227: 88140 + 390 = 88530
Step 228: 88530 + 390 = 88920
Step 229: 88920 + 390 = 89310
Step 230: 89310 + 390 = 89700
Step 231: 89700 + 390 = 90090
Step 232: 90090 + 390 = 90480
Step 233: 90480 + 390 = 90870
Step 234: 90870 + 390 = 91260
Step 235: 91260 + 390 = 91650
Step 236: 91650 + 390 = 92040
Step 237: 92040 + 390 = 92430
Step 238: 92430 + 390 = 92820
Step 239: 92820 + 390 = 93210
Step 240: 93210 + 390 = 93600
Step 241: 93600 + 390 = 93990
Step 242: 93990 + 390 = 94380
Step 243: 94380 + 390 = 94770
Step 244: 94770 + 390 = 95160
Step 245: 95160 + 390 = 95550
Step 246: 95550 + 390 = 95940
Step 247: 95940 + 390 = 96330
Step 248: 96330 + 390 = 96720
Step 249: 96720 + 390 = 97110
Step 250: 97110 + 390 = 97500
Step 251: 97500 + 390 = 97890
Step 252: 97890 + 390 = 98280
Step 253: 98280 + 390 = 98670
Step 254: 98670 + 390 = 99060
Step 255: 99060 + 390 = 99450
Step 256: 99450 + 390 = 99840
Step 257: 99840 + 390 = 100230
Step 258: 100230 + 390 = 100620
Step 259: 100620 + 390 = 101010
Step 260: 101010 + 390 = 101400
Step 261: 101400 + 390 = 101790
Step 262: 101790 + 390 = 102180
Step 263: 102180 + 390 = 102570
Step 264: 102570 + 390 = 102960
Step 265: 102960 + 390 = 103350
Step 266: 103350 + 390 = 103740
Step 267: 103740 + 390 = 104130
Step 268: 104130 + 390 = 104520
Step 269: 104520 + 390 = 104910
Step 270: 104910 + 390 = 105300
Step 271: 105300 + 390 = 105690
Step 272: 105690 + 390 = 106080
Step 273: 106080 + 390 = 106470
Step 274: 106470 + 390 = 106860
Step 275: 106860 + 390 = 107250
Step 276: 107250 + 390 = 107640
Step 277: 107640 + 390 = 108030
Step 278: 108030 + 390 = 108420
Step 279: 108420 + 390 = 108810
Step 280: 108810 + 390 = 109200
Step 281: 109200 + 390 = 109590
Step 282: 109590 + 390 = 109980
Step 283: 109980 + 390 = 110370
Step 284: 110370 + 390 = 110760
Step 285: 110760 + 390 = 111150
Step 286: 111150 + 390 = 111540
Step 287: 111540 + 390 = 111930
Step 288: 111930 + 390 = 112320
Step 289: 112320 + 390 = 112710
Step 290: 112710 + 390 = 113100
Step 291: 113100 + 390 = 113490
Step 292: 113490 + 390 = 113880
Step 293: 113880 + 390 = 114270
Step 294: 114270 + 390 = 114660
Step 295: 114660 + 390 = 115050
Step 296: 115050 + 390 = 115440
Step 297: 115440 + 390 = 115830
Step 298: 115830 + 390 = 116220
Step 299: 116220 + 390 = 116610
Step 300: 116610 + 390 = 117000
Step 301: 117000 + 390 = 117390
Step 302: 117390 + 390 = 117780
Step 303: 117780 + 390 = 118170
Step 304: 118170 + 390 = 118560
Step 305: 118560 + 390 = 118950
Step 306: 118950 + 390 = 119340
Step 307: 119340 + 390 = 119730
Step 308: 119730 + 390 = 120120
Step 309: 120120 + 390 = 120510
Step 310: 120510 + 390 = 120900
Step 311: 120900 + 390 = 121290
Step 312: 121290 + 390 = 121680
Step 313: 121680 + 390 = 122070
Step 314: 122070 + 390 = 122460
Step 315: 122460 + 390 = 122850
Step 316: 122850 + 390 = 123240
Step 317: 123240 + 390 = 123630
Step 318: 123630 + 390 = 124020
Step 319: 124020 + 390 = 124410
Step 320: 124410 + 390 = 124800
Step 321: 124800 + 390 = 125190
Step 322: 125190 + 390 = 125580
Step 323: 125580 + 390 = 125970

So, 390*323 = 125970