Alright, let's solve this math problem step by step. First, we have the number 500. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 420. So, we're going to take the number 500 and add it to itself 420 times.
Step 1: 0 + 500 = 500
Step 2: 500 + 500 = 1000
Step 3: 1000 + 500 = 1500
Step 4: 1500 + 500 = 2000
Step 5: 2000 + 500 = 2500
Step 6: 2500 + 500 = 3000
Step 7: 3000 + 500 = 3500
Step 8: 3500 + 500 = 4000
Step 9: 4000 + 500 = 4500
Step 10: 4500 + 500 = 5000
Step 11: 5000 + 500 = 5500
Step 12: 5500 + 500 = 6000
Step 13: 6000 + 500 = 6500
Step 14: 6500 + 500 = 7000
Step 15: 7000 + 500 = 7500
Step 16: 7500 + 500 = 8000
Step 17: 8000 + 500 = 8500
Step 18: 8500 + 500 = 9000
Step 19: 9000 + 500 = 9500
Step 20: 9500 + 500 = 10000
Step 21: 10000 + 500 = 10500
Step 22: 10500 + 500 = 11000
Step 23: 11000 + 500 = 11500
Step 24: 11500 + 500 = 12000
Step 25: 12000 + 500 = 12500
Step 26: 12500 + 500 = 13000
Step 27: 13000 + 500 = 13500
Step 28: 13500 + 500 = 14000
Step 29: 14000 + 500 = 14500
Step 30: 14500 + 500 = 15000
Step 31: 15000 + 500 = 15500
Step 32: 15500 + 500 = 16000
Step 33: 16000 + 500 = 16500
Step 34: 16500 + 500 = 17000
Step 35: 17000 + 500 = 17500
Step 36: 17500 + 500 = 18000
Step 37: 18000 + 500 = 18500
Step 38: 18500 + 500 = 19000
Step 39: 19000 + 500 = 19500
Step 40: 19500 + 500 = 20000
Step 41: 20000 + 500 = 20500
Step 42: 20500 + 500 = 21000
Step 43: 21000 + 500 = 21500
Step 44: 21500 + 500 = 22000
Step 45: 22000 + 500 = 22500
Step 46: 22500 + 500 = 23000
Step 47: 23000 + 500 = 23500
Step 48: 23500 + 500 = 24000
Step 49: 24000 + 500 = 24500
Step 50: 24500 + 500 = 25000
Step 51: 25000 + 500 = 25500
Step 52: 25500 + 500 = 26000
Step 53: 26000 + 500 = 26500
Step 54: 26500 + 500 = 27000
Step 55: 27000 + 500 = 27500
Step 56: 27500 + 500 = 28000
Step 57: 28000 + 500 = 28500
Step 58: 28500 + 500 = 29000
Step 59: 29000 + 500 = 29500
Step 60: 29500 + 500 = 30000
Step 61: 30000 + 500 = 30500
Step 62: 30500 + 500 = 31000
Step 63: 31000 + 500 = 31500
Step 64: 31500 + 500 = 32000
Step 65: 32000 + 500 = 32500
Step 66: 32500 + 500 = 33000
Step 67: 33000 + 500 = 33500
Step 68: 33500 + 500 = 34000
Step 69: 34000 + 500 = 34500
Step 70: 34500 + 500 = 35000
Step 71: 35000 + 500 = 35500
Step 72: 35500 + 500 = 36000
Step 73: 36000 + 500 = 36500
Step 74: 36500 + 500 = 37000
Step 75: 37000 + 500 = 37500
Step 76: 37500 + 500 = 38000
Step 77: 38000 + 500 = 38500
Step 78: 38500 + 500 = 39000
Step 79: 39000 + 500 = 39500
Step 80: 39500 + 500 = 40000
Step 81: 40000 + 500 = 40500
Step 82: 40500 + 500 = 41000
Step 83: 41000 + 500 = 41500
Step 84: 41500 + 500 = 42000
Step 85: 42000 + 500 = 42500
Step 86: 42500 + 500 = 43000
Step 87: 43000 + 500 = 43500
Step 88: 43500 + 500 = 44000
Step 89: 44000 + 500 = 44500
Step 90: 44500 + 500 = 45000
Step 91: 45000 + 500 = 45500
Step 92: 45500 + 500 = 46000
Step 93: 46000 + 500 = 46500
Step 94: 46500 + 500 = 47000
Step 95: 47000 + 500 = 47500
Step 96: 47500 + 500 = 48000
Step 97: 48000 + 500 = 48500
Step 98: 48500 + 500 = 49000
Step 99: 49000 + 500 = 49500
Step 100: 49500 + 500 = 50000
Step 101: 50000 + 500 = 50500
Step 102: 50500 + 500 = 51000
Step 103: 51000 + 500 = 51500
Step 104: 51500 + 500 = 52000
Step 105: 52000 + 500 = 52500
Step 106: 52500 + 500 = 53000
Step 107: 53000 + 500 = 53500
Step 108: 53500 + 500 = 54000
Step 109: 54000 + 500 = 54500
Step 110: 54500 + 500 = 55000
Step 111: 55000 + 500 = 55500
Step 112: 55500 + 500 = 56000
Step 113: 56000 + 500 = 56500
Step 114: 56500 + 500 = 57000
Step 115: 57000 + 500 = 57500
Step 116: 57500 + 500 = 58000
Step 117: 58000 + 500 = 58500
Step 118: 58500 + 500 = 59000
Step 119: 59000 + 500 = 59500
Step 120: 59500 + 500 = 60000
Step 121: 60000 + 500 = 60500
Step 122: 60500 + 500 = 61000
Step 123: 61000 + 500 = 61500
Step 124: 61500 + 500 = 62000
Step 125: 62000 + 500 = 62500
Step 126: 62500 + 500 = 63000
Step 127: 63000 + 500 = 63500
Step 128: 63500 + 500 = 64000
Step 129: 64000 + 500 = 64500
Step 130: 64500 + 500 = 65000
Step 131: 65000 + 500 = 65500
Step 132: 65500 + 500 = 66000
Step 133: 66000 + 500 = 66500
Step 134: 66500 + 500 = 67000
Step 135: 67000 + 500 = 67500
Step 136: 67500 + 500 = 68000
Step 137: 68000 + 500 = 68500
Step 138: 68500 + 500 = 69000
Step 139: 69000 + 500 = 69500
Step 140: 69500 + 500 = 70000
Step 141: 70000 + 500 = 70500
Step 142: 70500 + 500 = 71000
Step 143: 71000 + 500 = 71500
Step 144: 71500 + 500 = 72000
Step 145: 72000 + 500 = 72500
Step 146: 72500 + 500 = 73000
Step 147: 73000 + 500 = 73500
Step 148: 73500 + 500 = 74000
Step 149: 74000 + 500 = 74500
Step 150: 74500 + 500 = 75000
Step 151: 75000 + 500 = 75500
Step 152: 75500 + 500 = 76000
Step 153: 76000 + 500 = 76500
Step 154: 76500 + 500 = 77000
Step 155: 77000 + 500 = 77500
Step 156: 77500 + 500 = 78000
Step 157: 78000 + 500 = 78500
Step 158: 78500 + 500 = 79000
Step 159: 79000 + 500 = 79500
Step 160: 79500 + 500 = 80000
Step 161: 80000 + 500 = 80500
Step 162: 80500 + 500 = 81000
Step 163: 81000 + 500 = 81500
Step 164: 81500 + 500 = 82000
Step 165: 82000 + 500 = 82500
Step 166: 82500 + 500 = 83000
Step 167: 83000 + 500 = 83500
Step 168: 83500 + 500 = 84000
Step 169: 84000 + 500 = 84500
Step 170: 84500 + 500 = 85000
Step 171: 85000 + 500 = 85500
Step 172: 85500 + 500 = 86000
Step 173: 86000 + 500 = 86500
Step 174: 86500 + 500 = 87000
Step 175: 87000 + 500 = 87500
Step 176: 87500 + 500 = 88000
Step 177: 88000 + 500 = 88500
Step 178: 88500 + 500 = 89000
Step 179: 89000 + 500 = 89500
Step 180: 89500 + 500 = 90000
Step 181: 90000 + 500 = 90500
Step 182: 90500 + 500 = 91000
Step 183: 91000 + 500 = 91500
Step 184: 91500 + 500 = 92000
Step 185: 92000 + 500 = 92500
Step 186: 92500 + 500 = 93000
Step 187: 93000 + 500 = 93500
Step 188: 93500 + 500 = 94000
Step 189: 94000 + 500 = 94500
Step 190: 94500 + 500 = 95000
Step 191: 95000 + 500 = 95500
Step 192: 95500 + 500 = 96000
Step 193: 96000 + 500 = 96500
Step 194: 96500 + 500 = 97000
Step 195: 97000 + 500 = 97500
Step 196: 97500 + 500 = 98000
Step 197: 98000 + 500 = 98500
Step 198: 98500 + 500 = 99000
Step 199: 99000 + 500 = 99500
Step 200: 99500 + 500 = 100000
Step 201: 100000 + 500 = 100500
Step 202: 100500 + 500 = 101000
Step 203: 101000 + 500 = 101500
Step 204: 101500 + 500 = 102000
Step 205: 102000 + 500 = 102500
Step 206: 102500 + 500 = 103000
Step 207: 103000 + 500 = 103500
Step 208: 103500 + 500 = 104000
Step 209: 104000 + 500 = 104500
Step 210: 104500 + 500 = 105000
Step 211: 105000 + 500 = 105500
Step 212: 105500 + 500 = 106000
Step 213: 106000 + 500 = 106500
Step 214: 106500 + 500 = 107000
Step 215: 107000 + 500 = 107500
Step 216: 107500 + 500 = 108000
Step 217: 108000 + 500 = 108500
Step 218: 108500 + 500 = 109000
Step 219: 109000 + 500 = 109500
Step 220: 109500 + 500 = 110000
Step 221: 110000 + 500 = 110500
Step 222: 110500 + 500 = 111000
Step 223: 111000 + 500 = 111500
Step 224: 111500 + 500 = 112000
Step 225: 112000 + 500 = 112500
Step 226: 112500 + 500 = 113000
Step 227: 113000 + 500 = 113500
Step 228: 113500 + 500 = 114000
Step 229: 114000 + 500 = 114500
Step 230: 114500 + 500 = 115000
Step 231: 115000 + 500 = 115500
Step 232: 115500 + 500 = 116000
Step 233: 116000 + 500 = 116500
Step 234: 116500 + 500 = 117000
Step 235: 117000 + 500 = 117500
Step 236: 117500 + 500 = 118000
Step 237: 118000 + 500 = 118500
Step 238: 118500 + 500 = 119000
Step 239: 119000 + 500 = 119500
Step 240: 119500 + 500 = 120000
Step 241: 120000 + 500 = 120500
Step 242: 120500 + 500 = 121000
Step 243: 121000 + 500 = 121500
Step 244: 121500 + 500 = 122000
Step 245: 122000 + 500 = 122500
Step 246: 122500 + 500 = 123000
Step 247: 123000 + 500 = 123500
Step 248: 123500 + 500 = 124000
Step 249: 124000 + 500 = 124500
Step 250: 124500 + 500 = 125000
Step 251: 125000 + 500 = 125500
Step 252: 125500 + 500 = 126000
Step 253: 126000 + 500 = 126500
Step 254: 126500 + 500 = 127000
Step 255: 127000 + 500 = 127500
Step 256: 127500 + 500 = 128000
Step 257: 128000 + 500 = 128500
Step 258: 128500 + 500 = 129000
Step 259: 129000 + 500 = 129500
Step 260: 129500 + 500 = 130000
Step 261: 130000 + 500 = 130500
Step 262: 130500 + 500 = 131000
Step 263: 131000 + 500 = 131500
Step 264: 131500 + 500 = 132000
Step 265: 132000 + 500 = 132500
Step 266: 132500 + 500 = 133000
Step 267: 133000 + 500 = 133500
Step 268: 133500 + 500 = 134000
Step 269: 134000 + 500 = 134500
Step 270: 134500 + 500 = 135000
Step 271: 135000 + 500 = 135500
Step 272: 135500 + 500 = 136000
Step 273: 136000 + 500 = 136500
Step 274: 136500 + 500 = 137000
Step 275: 137000 + 500 = 137500
Step 276: 137500 + 500 = 138000
Step 277: 138000 + 500 = 138500
Step 278: 138500 + 500 = 139000
Step 279: 139000 + 500 = 139500
Step 280: 139500 + 500 = 140000
Step 281: 140000 + 500 = 140500
Step 282: 140500 + 500 = 141000
Step 283: 141000 + 500 = 141500
Step 284: 141500 + 500 = 142000
Step 285: 142000 + 500 = 142500
Step 286: 142500 + 500 = 143000
Step 287: 143000 + 500 = 143500
Step 288: 143500 + 500 = 144000
Step 289: 144000 + 500 = 144500
Step 290: 144500 + 500 = 145000
Step 291: 145000 + 500 = 145500
Step 292: 145500 + 500 = 146000
Step 293: 146000 + 500 = 146500
Step 294: 146500 + 500 = 147000
Step 295: 147000 + 500 = 147500
Step 296: 147500 + 500 = 148000
Step 297: 148000 + 500 = 148500
Step 298: 148500 + 500 = 149000
Step 299: 149000 + 500 = 149500
Step 300: 149500 + 500 = 150000
Step 301: 150000 + 500 = 150500
Step 302: 150500 + 500 = 151000
Step 303: 151000 + 500 = 151500
Step 304: 151500 + 500 = 152000
Step 305: 152000 + 500 = 152500
Step 306: 152500 + 500 = 153000
Step 307: 153000 + 500 = 153500
Step 308: 153500 + 500 = 154000
Step 309: 154000 + 500 = 154500
Step 310: 154500 + 500 = 155000
Step 311: 155000 + 500 = 155500
Step 312: 155500 + 500 = 156000
Step 313: 156000 + 500 = 156500
Step 314: 156500 + 500 = 157000
Step 315: 157000 + 500 = 157500
Step 316: 157500 + 500 = 158000
Step 317: 158000 + 500 = 158500
Step 318: 158500 + 500 = 159000
Step 319: 159000 + 500 = 159500
Step 320: 159500 + 500 = 160000
Step 321: 160000 + 500 = 160500
Step 322: 160500 + 500 = 161000
Step 323: 161000 + 500 = 161500
Step 324: 161500 + 500 = 162000
Step 325: 162000 + 500 = 162500
Step 326: 162500 + 500 = 163000
Step 327: 163000 + 500 = 163500
Step 328: 163500 + 500 = 164000
Step 329: 164000 + 500 = 164500
Step 330: 164500 + 500 = 165000
Step 331: 165000 + 500 = 165500
Step 332: 165500 + 500 = 166000
Step 333: 166000 + 500 = 166500
Step 334: 166500 + 500 = 167000
Step 335: 167000 + 500 = 167500
Step 336: 167500 + 500 = 168000
Step 337: 168000 + 500 = 168500
Step 338: 168500 + 500 = 169000
Step 339: 169000 + 500 = 169500
Step 340: 169500 + 500 = 170000
Step 341: 170000 + 500 = 170500
Step 342: 170500 + 500 = 171000
Step 343: 171000 + 500 = 171500
Step 344: 171500 + 500 = 172000
Step 345: 172000 + 500 = 172500
Step 346: 172500 + 500 = 173000
Step 347: 173000 + 500 = 173500
Step 348: 173500 + 500 = 174000
Step 349: 174000 + 500 = 174500
Step 350: 174500 + 500 = 175000
Step 351: 175000 + 500 = 175500
Step 352: 175500 + 500 = 176000
Step 353: 176000 + 500 = 176500
Step 354: 176500 + 500 = 177000
Step 355: 177000 + 500 = 177500
Step 356: 177500 + 500 = 178000
Step 357: 178000 + 500 = 178500
Step 358: 178500 + 500 = 179000
Step 359: 179000 + 500 = 179500
Step 360: 179500 + 500 = 180000
Step 361: 180000 + 500 = 180500
Step 362: 180500 + 500 = 181000
Step 363: 181000 + 500 = 181500
Step 364: 181500 + 500 = 182000
Step 365: 182000 + 500 = 182500
Step 366: 182500 + 500 = 183000
Step 367: 183000 + 500 = 183500
Step 368: 183500 + 500 = 184000
Step 369: 184000 + 500 = 184500
Step 370: 184500 + 500 = 185000
Step 371: 185000 + 500 = 185500
Step 372: 185500 + 500 = 186000
Step 373: 186000 + 500 = 186500
Step 374: 186500 + 500 = 187000
Step 375: 187000 + 500 = 187500
Step 376: 187500 + 500 = 188000
Step 377: 188000 + 500 = 188500
Step 378: 188500 + 500 = 189000
Step 379: 189000 + 500 = 189500
Step 380: 189500 + 500 = 190000
Step 381: 190000 + 500 = 190500
Step 382: 190500 + 500 = 191000
Step 383: 191000 + 500 = 191500
Step 384: 191500 + 500 = 192000
Step 385: 192000 + 500 = 192500
Step 386: 192500 + 500 = 193000
Step 387: 193000 + 500 = 193500
Step 388: 193500 + 500 = 194000
Step 389: 194000 + 500 = 194500
Step 390: 194500 + 500 = 195000
Step 391: 195000 + 500 = 195500
Step 392: 195500 + 500 = 196000
Step 393: 196000 + 500 = 196500
Step 394: 196500 + 500 = 197000
Step 395: 197000 + 500 = 197500
Step 396: 197500 + 500 = 198000
Step 397: 198000 + 500 = 198500
Step 398: 198500 + 500 = 199000
Step 399: 199000 + 500 = 199500
Step 400: 199500 + 500 = 200000
Step 401: 200000 + 500 = 200500
Step 402: 200500 + 500 = 201000
Step 403: 201000 + 500 = 201500
Step 404: 201500 + 500 = 202000
Step 405: 202000 + 500 = 202500
Step 406: 202500 + 500 = 203000
Step 407: 203000 + 500 = 203500
Step 408: 203500 + 500 = 204000
Step 409: 204000 + 500 = 204500
Step 410: 204500 + 500 = 205000
Step 411: 205000 + 500 = 205500
Step 412: 205500 + 500 = 206000
Step 413: 206000 + 500 = 206500
Step 414: 206500 + 500 = 207000
Step 415: 207000 + 500 = 207500
Step 416: 207500 + 500 = 208000
Step 417: 208000 + 500 = 208500
Step 418: 208500 + 500 = 209000
Step 419: 209000 + 500 = 209500
Step 420: 209500 + 500 = 210000

So, 500*420 = 210000