Alright, let's solve this math problem step by step. First, we have the number 425. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 339. So, we're going to take the number 425 and add it to itself 339 times.
Step 1: 0 + 425 = 425
Step 2: 425 + 425 = 850
Step 3: 850 + 425 = 1275
Step 4: 1275 + 425 = 1700
Step 5: 1700 + 425 = 2125
Step 6: 2125 + 425 = 2550
Step 7: 2550 + 425 = 2975
Step 8: 2975 + 425 = 3400
Step 9: 3400 + 425 = 3825
Step 10: 3825 + 425 = 4250
Step 11: 4250 + 425 = 4675
Step 12: 4675 + 425 = 5100
Step 13: 5100 + 425 = 5525
Step 14: 5525 + 425 = 5950
Step 15: 5950 + 425 = 6375
Step 16: 6375 + 425 = 6800
Step 17: 6800 + 425 = 7225
Step 18: 7225 + 425 = 7650
Step 19: 7650 + 425 = 8075
Step 20: 8075 + 425 = 8500
Step 21: 8500 + 425 = 8925
Step 22: 8925 + 425 = 9350
Step 23: 9350 + 425 = 9775
Step 24: 9775 + 425 = 10200
Step 25: 10200 + 425 = 10625
Step 26: 10625 + 425 = 11050
Step 27: 11050 + 425 = 11475
Step 28: 11475 + 425 = 11900
Step 29: 11900 + 425 = 12325
Step 30: 12325 + 425 = 12750
Step 31: 12750 + 425 = 13175
Step 32: 13175 + 425 = 13600
Step 33: 13600 + 425 = 14025
Step 34: 14025 + 425 = 14450
Step 35: 14450 + 425 = 14875
Step 36: 14875 + 425 = 15300
Step 37: 15300 + 425 = 15725
Step 38: 15725 + 425 = 16150
Step 39: 16150 + 425 = 16575
Step 40: 16575 + 425 = 17000
Step 41: 17000 + 425 = 17425
Step 42: 17425 + 425 = 17850
Step 43: 17850 + 425 = 18275
Step 44: 18275 + 425 = 18700
Step 45: 18700 + 425 = 19125
Step 46: 19125 + 425 = 19550
Step 47: 19550 + 425 = 19975
Step 48: 19975 + 425 = 20400
Step 49: 20400 + 425 = 20825
Step 50: 20825 + 425 = 21250
Step 51: 21250 + 425 = 21675
Step 52: 21675 + 425 = 22100
Step 53: 22100 + 425 = 22525
Step 54: 22525 + 425 = 22950
Step 55: 22950 + 425 = 23375
Step 56: 23375 + 425 = 23800
Step 57: 23800 + 425 = 24225
Step 58: 24225 + 425 = 24650
Step 59: 24650 + 425 = 25075
Step 60: 25075 + 425 = 25500
Step 61: 25500 + 425 = 25925
Step 62: 25925 + 425 = 26350
Step 63: 26350 + 425 = 26775
Step 64: 26775 + 425 = 27200
Step 65: 27200 + 425 = 27625
Step 66: 27625 + 425 = 28050
Step 67: 28050 + 425 = 28475
Step 68: 28475 + 425 = 28900
Step 69: 28900 + 425 = 29325
Step 70: 29325 + 425 = 29750
Step 71: 29750 + 425 = 30175
Step 72: 30175 + 425 = 30600
Step 73: 30600 + 425 = 31025
Step 74: 31025 + 425 = 31450
Step 75: 31450 + 425 = 31875
Step 76: 31875 + 425 = 32300
Step 77: 32300 + 425 = 32725
Step 78: 32725 + 425 = 33150
Step 79: 33150 + 425 = 33575
Step 80: 33575 + 425 = 34000
Step 81: 34000 + 425 = 34425
Step 82: 34425 + 425 = 34850
Step 83: 34850 + 425 = 35275
Step 84: 35275 + 425 = 35700
Step 85: 35700 + 425 = 36125
Step 86: 36125 + 425 = 36550
Step 87: 36550 + 425 = 36975
Step 88: 36975 + 425 = 37400
Step 89: 37400 + 425 = 37825
Step 90: 37825 + 425 = 38250
Step 91: 38250 + 425 = 38675
Step 92: 38675 + 425 = 39100
Step 93: 39100 + 425 = 39525
Step 94: 39525 + 425 = 39950
Step 95: 39950 + 425 = 40375
Step 96: 40375 + 425 = 40800
Step 97: 40800 + 425 = 41225
Step 98: 41225 + 425 = 41650
Step 99: 41650 + 425 = 42075
Step 100: 42075 + 425 = 42500
Step 101: 42500 + 425 = 42925
Step 102: 42925 + 425 = 43350
Step 103: 43350 + 425 = 43775
Step 104: 43775 + 425 = 44200
Step 105: 44200 + 425 = 44625
Step 106: 44625 + 425 = 45050
Step 107: 45050 + 425 = 45475
Step 108: 45475 + 425 = 45900
Step 109: 45900 + 425 = 46325
Step 110: 46325 + 425 = 46750
Step 111: 46750 + 425 = 47175
Step 112: 47175 + 425 = 47600
Step 113: 47600 + 425 = 48025
Step 114: 48025 + 425 = 48450
Step 115: 48450 + 425 = 48875
Step 116: 48875 + 425 = 49300
Step 117: 49300 + 425 = 49725
Step 118: 49725 + 425 = 50150
Step 119: 50150 + 425 = 50575
Step 120: 50575 + 425 = 51000
Step 121: 51000 + 425 = 51425
Step 122: 51425 + 425 = 51850
Step 123: 51850 + 425 = 52275
Step 124: 52275 + 425 = 52700
Step 125: 52700 + 425 = 53125
Step 126: 53125 + 425 = 53550
Step 127: 53550 + 425 = 53975
Step 128: 53975 + 425 = 54400
Step 129: 54400 + 425 = 54825
Step 130: 54825 + 425 = 55250
Step 131: 55250 + 425 = 55675
Step 132: 55675 + 425 = 56100
Step 133: 56100 + 425 = 56525
Step 134: 56525 + 425 = 56950
Step 135: 56950 + 425 = 57375
Step 136: 57375 + 425 = 57800
Step 137: 57800 + 425 = 58225
Step 138: 58225 + 425 = 58650
Step 139: 58650 + 425 = 59075
Step 140: 59075 + 425 = 59500
Step 141: 59500 + 425 = 59925
Step 142: 59925 + 425 = 60350
Step 143: 60350 + 425 = 60775
Step 144: 60775 + 425 = 61200
Step 145: 61200 + 425 = 61625
Step 146: 61625 + 425 = 62050
Step 147: 62050 + 425 = 62475
Step 148: 62475 + 425 = 62900
Step 149: 62900 + 425 = 63325
Step 150: 63325 + 425 = 63750
Step 151: 63750 + 425 = 64175
Step 152: 64175 + 425 = 64600
Step 153: 64600 + 425 = 65025
Step 154: 65025 + 425 = 65450
Step 155: 65450 + 425 = 65875
Step 156: 65875 + 425 = 66300
Step 157: 66300 + 425 = 66725
Step 158: 66725 + 425 = 67150
Step 159: 67150 + 425 = 67575
Step 160: 67575 + 425 = 68000
Step 161: 68000 + 425 = 68425
Step 162: 68425 + 425 = 68850
Step 163: 68850 + 425 = 69275
Step 164: 69275 + 425 = 69700
Step 165: 69700 + 425 = 70125
Step 166: 70125 + 425 = 70550
Step 167: 70550 + 425 = 70975
Step 168: 70975 + 425 = 71400
Step 169: 71400 + 425 = 71825
Step 170: 71825 + 425 = 72250
Step 171: 72250 + 425 = 72675
Step 172: 72675 + 425 = 73100
Step 173: 73100 + 425 = 73525
Step 174: 73525 + 425 = 73950
Step 175: 73950 + 425 = 74375
Step 176: 74375 + 425 = 74800
Step 177: 74800 + 425 = 75225
Step 178: 75225 + 425 = 75650
Step 179: 75650 + 425 = 76075
Step 180: 76075 + 425 = 76500
Step 181: 76500 + 425 = 76925
Step 182: 76925 + 425 = 77350
Step 183: 77350 + 425 = 77775
Step 184: 77775 + 425 = 78200
Step 185: 78200 + 425 = 78625
Step 186: 78625 + 425 = 79050
Step 187: 79050 + 425 = 79475
Step 188: 79475 + 425 = 79900
Step 189: 79900 + 425 = 80325
Step 190: 80325 + 425 = 80750
Step 191: 80750 + 425 = 81175
Step 192: 81175 + 425 = 81600
Step 193: 81600 + 425 = 82025
Step 194: 82025 + 425 = 82450
Step 195: 82450 + 425 = 82875
Step 196: 82875 + 425 = 83300
Step 197: 83300 + 425 = 83725
Step 198: 83725 + 425 = 84150
Step 199: 84150 + 425 = 84575
Step 200: 84575 + 425 = 85000
Step 201: 85000 + 425 = 85425
Step 202: 85425 + 425 = 85850
Step 203: 85850 + 425 = 86275
Step 204: 86275 + 425 = 86700
Step 205: 86700 + 425 = 87125
Step 206: 87125 + 425 = 87550
Step 207: 87550 + 425 = 87975
Step 208: 87975 + 425 = 88400
Step 209: 88400 + 425 = 88825
Step 210: 88825 + 425 = 89250
Step 211: 89250 + 425 = 89675
Step 212: 89675 + 425 = 90100
Step 213: 90100 + 425 = 90525
Step 214: 90525 + 425 = 90950
Step 215: 90950 + 425 = 91375
Step 216: 91375 + 425 = 91800
Step 217: 91800 + 425 = 92225
Step 218: 92225 + 425 = 92650
Step 219: 92650 + 425 = 93075
Step 220: 93075 + 425 = 93500
Step 221: 93500 + 425 = 93925
Step 222: 93925 + 425 = 94350
Step 223: 94350 + 425 = 94775
Step 224: 94775 + 425 = 95200
Step 225: 95200 + 425 = 95625
Step 226: 95625 + 425 = 96050
Step 227: 96050 + 425 = 96475
Step 228: 96475 + 425 = 96900
Step 229: 96900 + 425 = 97325
Step 230: 97325 + 425 = 97750
Step 231: 97750 + 425 = 98175
Step 232: 98175 + 425 = 98600
Step 233: 98600 + 425 = 99025
Step 234: 99025 + 425 = 99450
Step 235: 99450 + 425 = 99875
Step 236: 99875 + 425 = 100300
Step 237: 100300 + 425 = 100725
Step 238: 100725 + 425 = 101150
Step 239: 101150 + 425 = 101575
Step 240: 101575 + 425 = 102000
Step 241: 102000 + 425 = 102425
Step 242: 102425 + 425 = 102850
Step 243: 102850 + 425 = 103275
Step 244: 103275 + 425 = 103700
Step 245: 103700 + 425 = 104125
Step 246: 104125 + 425 = 104550
Step 247: 104550 + 425 = 104975
Step 248: 104975 + 425 = 105400
Step 249: 105400 + 425 = 105825
Step 250: 105825 + 425 = 106250
Step 251: 106250 + 425 = 106675
Step 252: 106675 + 425 = 107100
Step 253: 107100 + 425 = 107525
Step 254: 107525 + 425 = 107950
Step 255: 107950 + 425 = 108375
Step 256: 108375 + 425 = 108800
Step 257: 108800 + 425 = 109225
Step 258: 109225 + 425 = 109650
Step 259: 109650 + 425 = 110075
Step 260: 110075 + 425 = 110500
Step 261: 110500 + 425 = 110925
Step 262: 110925 + 425 = 111350
Step 263: 111350 + 425 = 111775
Step 264: 111775 + 425 = 112200
Step 265: 112200 + 425 = 112625
Step 266: 112625 + 425 = 113050
Step 267: 113050 + 425 = 113475
Step 268: 113475 + 425 = 113900
Step 269: 113900 + 425 = 114325
Step 270: 114325 + 425 = 114750
Step 271: 114750 + 425 = 115175
Step 272: 115175 + 425 = 115600
Step 273: 115600 + 425 = 116025
Step 274: 116025 + 425 = 116450
Step 275: 116450 + 425 = 116875
Step 276: 116875 + 425 = 117300
Step 277: 117300 + 425 = 117725
Step 278: 117725 + 425 = 118150
Step 279: 118150 + 425 = 118575
Step 280: 118575 + 425 = 119000
Step 281: 119000 + 425 = 119425
Step 282: 119425 + 425 = 119850
Step 283: 119850 + 425 = 120275
Step 284: 120275 + 425 = 120700
Step 285: 120700 + 425 = 121125
Step 286: 121125 + 425 = 121550
Step 287: 121550 + 425 = 121975
Step 288: 121975 + 425 = 122400
Step 289: 122400 + 425 = 122825
Step 290: 122825 + 425 = 123250
Step 291: 123250 + 425 = 123675
Step 292: 123675 + 425 = 124100
Step 293: 124100 + 425 = 124525
Step 294: 124525 + 425 = 124950
Step 295: 124950 + 425 = 125375
Step 296: 125375 + 425 = 125800
Step 297: 125800 + 425 = 126225
Step 298: 126225 + 425 = 126650
Step 299: 126650 + 425 = 127075
Step 300: 127075 + 425 = 127500
Step 301: 127500 + 425 = 127925
Step 302: 127925 + 425 = 128350
Step 303: 128350 + 425 = 128775
Step 304: 128775 + 425 = 129200
Step 305: 129200 + 425 = 129625
Step 306: 129625 + 425 = 130050
Step 307: 130050 + 425 = 130475
Step 308: 130475 + 425 = 130900
Step 309: 130900 + 425 = 131325
Step 310: 131325 + 425 = 131750
Step 311: 131750 + 425 = 132175
Step 312: 132175 + 425 = 132600
Step 313: 132600 + 425 = 133025
Step 314: 133025 + 425 = 133450
Step 315: 133450 + 425 = 133875
Step 316: 133875 + 425 = 134300
Step 317: 134300 + 425 = 134725
Step 318: 134725 + 425 = 135150
Step 319: 135150 + 425 = 135575
Step 320: 135575 + 425 = 136000
Step 321: 136000 + 425 = 136425
Step 322: 136425 + 425 = 136850
Step 323: 136850 + 425 = 137275
Step 324: 137275 + 425 = 137700
Step 325: 137700 + 425 = 138125
Step 326: 138125 + 425 = 138550
Step 327: 138550 + 425 = 138975
Step 328: 138975 + 425 = 139400
Step 329: 139400 + 425 = 139825
Step 330: 139825 + 425 = 140250
Step 331: 140250 + 425 = 140675
Step 332: 140675 + 425 = 141100
Step 333: 141100 + 425 = 141525
Step 334: 141525 + 425 = 141950
Step 335: 141950 + 425 = 142375
Step 336: 142375 + 425 = 142800
Step 337: 142800 + 425 = 143225
Step 338: 143225 + 425 = 143650
Step 339: 143650 + 425 = 144075

So, 425*339 = 144075