Sure thing! We've got 200 and we're gonna multiply it by 394. That's the same as adding 200 to itself 394 times.
Step 1: 0 + 200 = 200
Step 2: 200 + 200 = 400
Step 3: 400 + 200 = 600
Step 4: 600 + 200 = 800
Step 5: 800 + 200 = 1000
Step 6: 1000 + 200 = 1200
Step 7: 1200 + 200 = 1400
Step 8: 1400 + 200 = 1600
Step 9: 1600 + 200 = 1800
Step 10: 1800 + 200 = 2000
Step 11: 2000 + 200 = 2200
Step 12: 2200 + 200 = 2400
Step 13: 2400 + 200 = 2600
Step 14: 2600 + 200 = 2800
Step 15: 2800 + 200 = 3000
Step 16: 3000 + 200 = 3200
Step 17: 3200 + 200 = 3400
Step 18: 3400 + 200 = 3600
Step 19: 3600 + 200 = 3800
Step 20: 3800 + 200 = 4000
Step 21: 4000 + 200 = 4200
Step 22: 4200 + 200 = 4400
Step 23: 4400 + 200 = 4600
Step 24: 4600 + 200 = 4800
Step 25: 4800 + 200 = 5000
Step 26: 5000 + 200 = 5200
Step 27: 5200 + 200 = 5400
Step 28: 5400 + 200 = 5600
Step 29: 5600 + 200 = 5800
Step 30: 5800 + 200 = 6000
Step 31: 6000 + 200 = 6200
Step 32: 6200 + 200 = 6400
Step 33: 6400 + 200 = 6600
Step 34: 6600 + 200 = 6800
Step 35: 6800 + 200 = 7000
Step 36: 7000 + 200 = 7200
Step 37: 7200 + 200 = 7400
Step 38: 7400 + 200 = 7600
Step 39: 7600 + 200 = 7800
Step 40: 7800 + 200 = 8000
Step 41: 8000 + 200 = 8200
Step 42: 8200 + 200 = 8400
Step 43: 8400 + 200 = 8600
Step 44: 8600 + 200 = 8800
Step 45: 8800 + 200 = 9000
Step 46: 9000 + 200 = 9200
Step 47: 9200 + 200 = 9400
Step 48: 9400 + 200 = 9600
Step 49: 9600 + 200 = 9800
Step 50: 9800 + 200 = 10000
Step 51: 10000 + 200 = 10200
Step 52: 10200 + 200 = 10400
Step 53: 10400 + 200 = 10600
Step 54: 10600 + 200 = 10800
Step 55: 10800 + 200 = 11000
Step 56: 11000 + 200 = 11200
Step 57: 11200 + 200 = 11400
Step 58: 11400 + 200 = 11600
Step 59: 11600 + 200 = 11800
Step 60: 11800 + 200 = 12000
Step 61: 12000 + 200 = 12200
Step 62: 12200 + 200 = 12400
Step 63: 12400 + 200 = 12600
Step 64: 12600 + 200 = 12800
Step 65: 12800 + 200 = 13000
Step 66: 13000 + 200 = 13200
Step 67: 13200 + 200 = 13400
Step 68: 13400 + 200 = 13600
Step 69: 13600 + 200 = 13800
Step 70: 13800 + 200 = 14000
Step 71: 14000 + 200 = 14200
Step 72: 14200 + 200 = 14400
Step 73: 14400 + 200 = 14600
Step 74: 14600 + 200 = 14800
Step 75: 14800 + 200 = 15000
Step 76: 15000 + 200 = 15200
Step 77: 15200 + 200 = 15400
Step 78: 15400 + 200 = 15600
Step 79: 15600 + 200 = 15800
Step 80: 15800 + 200 = 16000
Step 81: 16000 + 200 = 16200
Step 82: 16200 + 200 = 16400
Step 83: 16400 + 200 = 16600
Step 84: 16600 + 200 = 16800
Step 85: 16800 + 200 = 17000
Step 86: 17000 + 200 = 17200
Step 87: 17200 + 200 = 17400
Step 88: 17400 + 200 = 17600
Step 89: 17600 + 200 = 17800
Step 90: 17800 + 200 = 18000
Step 91: 18000 + 200 = 18200
Step 92: 18200 + 200 = 18400
Step 93: 18400 + 200 = 18600
Step 94: 18600 + 200 = 18800
Step 95: 18800 + 200 = 19000
Step 96: 19000 + 200 = 19200
Step 97: 19200 + 200 = 19400
Step 98: 19400 + 200 = 19600
Step 99: 19600 + 200 = 19800
Step 100: 19800 + 200 = 20000
Step 101: 20000 + 200 = 20200
Step 102: 20200 + 200 = 20400
Step 103: 20400 + 200 = 20600
Step 104: 20600 + 200 = 20800
Step 105: 20800 + 200 = 21000
Step 106: 21000 + 200 = 21200
Step 107: 21200 + 200 = 21400
Step 108: 21400 + 200 = 21600
Step 109: 21600 + 200 = 21800
Step 110: 21800 + 200 = 22000
Step 111: 22000 + 200 = 22200
Step 112: 22200 + 200 = 22400
Step 113: 22400 + 200 = 22600
Step 114: 22600 + 200 = 22800
Step 115: 22800 + 200 = 23000
Step 116: 23000 + 200 = 23200
Step 117: 23200 + 200 = 23400
Step 118: 23400 + 200 = 23600
Step 119: 23600 + 200 = 23800
Step 120: 23800 + 200 = 24000
Step 121: 24000 + 200 = 24200
Step 122: 24200 + 200 = 24400
Step 123: 24400 + 200 = 24600
Step 124: 24600 + 200 = 24800
Step 125: 24800 + 200 = 25000
Step 126: 25000 + 200 = 25200
Step 127: 25200 + 200 = 25400
Step 128: 25400 + 200 = 25600
Step 129: 25600 + 200 = 25800
Step 130: 25800 + 200 = 26000
Step 131: 26000 + 200 = 26200
Step 132: 26200 + 200 = 26400
Step 133: 26400 + 200 = 26600
Step 134: 26600 + 200 = 26800
Step 135: 26800 + 200 = 27000
Step 136: 27000 + 200 = 27200
Step 137: 27200 + 200 = 27400
Step 138: 27400 + 200 = 27600
Step 139: 27600 + 200 = 27800
Step 140: 27800 + 200 = 28000
Step 141: 28000 + 200 = 28200
Step 142: 28200 + 200 = 28400
Step 143: 28400 + 200 = 28600
Step 144: 28600 + 200 = 28800
Step 145: 28800 + 200 = 29000
Step 146: 29000 + 200 = 29200
Step 147: 29200 + 200 = 29400
Step 148: 29400 + 200 = 29600
Step 149: 29600 + 200 = 29800
Step 150: 29800 + 200 = 30000
Step 151: 30000 + 200 = 30200
Step 152: 30200 + 200 = 30400
Step 153: 30400 + 200 = 30600
Step 154: 30600 + 200 = 30800
Step 155: 30800 + 200 = 31000
Step 156: 31000 + 200 = 31200
Step 157: 31200 + 200 = 31400
Step 158: 31400 + 200 = 31600
Step 159: 31600 + 200 = 31800
Step 160: 31800 + 200 = 32000
Step 161: 32000 + 200 = 32200
Step 162: 32200 + 200 = 32400
Step 163: 32400 + 200 = 32600
Step 164: 32600 + 200 = 32800
Step 165: 32800 + 200 = 33000
Step 166: 33000 + 200 = 33200
Step 167: 33200 + 200 = 33400
Step 168: 33400 + 200 = 33600
Step 169: 33600 + 200 = 33800
Step 170: 33800 + 200 = 34000
Step 171: 34000 + 200 = 34200
Step 172: 34200 + 200 = 34400
Step 173: 34400 + 200 = 34600
Step 174: 34600 + 200 = 34800
Step 175: 34800 + 200 = 35000
Step 176: 35000 + 200 = 35200
Step 177: 35200 + 200 = 35400
Step 178: 35400 + 200 = 35600
Step 179: 35600 + 200 = 35800
Step 180: 35800 + 200 = 36000
Step 181: 36000 + 200 = 36200
Step 182: 36200 + 200 = 36400
Step 183: 36400 + 200 = 36600
Step 184: 36600 + 200 = 36800
Step 185: 36800 + 200 = 37000
Step 186: 37000 + 200 = 37200
Step 187: 37200 + 200 = 37400
Step 188: 37400 + 200 = 37600
Step 189: 37600 + 200 = 37800
Step 190: 37800 + 200 = 38000
Step 191: 38000 + 200 = 38200
Step 192: 38200 + 200 = 38400
Step 193: 38400 + 200 = 38600
Step 194: 38600 + 200 = 38800
Step 195: 38800 + 200 = 39000
Step 196: 39000 + 200 = 39200
Step 197: 39200 + 200 = 39400
Step 198: 39400 + 200 = 39600
Step 199: 39600 + 200 = 39800
Step 200: 39800 + 200 = 40000
Step 201: 40000 + 200 = 40200
Step 202: 40200 + 200 = 40400
Step 203: 40400 + 200 = 40600
Step 204: 40600 + 200 = 40800
Step 205: 40800 + 200 = 41000
Step 206: 41000 + 200 = 41200
Step 207: 41200 + 200 = 41400
Step 208: 41400 + 200 = 41600
Step 209: 41600 + 200 = 41800
Step 210: 41800 + 200 = 42000
Step 211: 42000 + 200 = 42200
Step 212: 42200 + 200 = 42400
Step 213: 42400 + 200 = 42600
Step 214: 42600 + 200 = 42800
Step 215: 42800 + 200 = 43000
Step 216: 43000 + 200 = 43200
Step 217: 43200 + 200 = 43400
Step 218: 43400 + 200 = 43600
Step 219: 43600 + 200 = 43800
Step 220: 43800 + 200 = 44000
Step 221: 44000 + 200 = 44200
Step 222: 44200 + 200 = 44400
Step 223: 44400 + 200 = 44600
Step 224: 44600 + 200 = 44800
Step 225: 44800 + 200 = 45000
Step 226: 45000 + 200 = 45200
Step 227: 45200 + 200 = 45400
Step 228: 45400 + 200 = 45600
Step 229: 45600 + 200 = 45800
Step 230: 45800 + 200 = 46000
Step 231: 46000 + 200 = 46200
Step 232: 46200 + 200 = 46400
Step 233: 46400 + 200 = 46600
Step 234: 46600 + 200 = 46800
Step 235: 46800 + 200 = 47000
Step 236: 47000 + 200 = 47200
Step 237: 47200 + 200 = 47400
Step 238: 47400 + 200 = 47600
Step 239: 47600 + 200 = 47800
Step 240: 47800 + 200 = 48000
Step 241: 48000 + 200 = 48200
Step 242: 48200 + 200 = 48400
Step 243: 48400 + 200 = 48600
Step 244: 48600 + 200 = 48800
Step 245: 48800 + 200 = 49000
Step 246: 49000 + 200 = 49200
Step 247: 49200 + 200 = 49400
Step 248: 49400 + 200 = 49600
Step 249: 49600 + 200 = 49800
Step 250: 49800 + 200 = 50000
Step 251: 50000 + 200 = 50200
Step 252: 50200 + 200 = 50400
Step 253: 50400 + 200 = 50600
Step 254: 50600 + 200 = 50800
Step 255: 50800 + 200 = 51000
Step 256: 51000 + 200 = 51200
Step 257: 51200 + 200 = 51400
Step 258: 51400 + 200 = 51600
Step 259: 51600 + 200 = 51800
Step 260: 51800 + 200 = 52000
Step 261: 52000 + 200 = 52200
Step 262: 52200 + 200 = 52400
Step 263: 52400 + 200 = 52600
Step 264: 52600 + 200 = 52800
Step 265: 52800 + 200 = 53000
Step 266: 53000 + 200 = 53200
Step 267: 53200 + 200 = 53400
Step 268: 53400 + 200 = 53600
Step 269: 53600 + 200 = 53800
Step 270: 53800 + 200 = 54000
Step 271: 54000 + 200 = 54200
Step 272: 54200 + 200 = 54400
Step 273: 54400 + 200 = 54600
Step 274: 54600 + 200 = 54800
Step 275: 54800 + 200 = 55000
Step 276: 55000 + 200 = 55200
Step 277: 55200 + 200 = 55400
Step 278: 55400 + 200 = 55600
Step 279: 55600 + 200 = 55800
Step 280: 55800 + 200 = 56000
Step 281: 56000 + 200 = 56200
Step 282: 56200 + 200 = 56400
Step 283: 56400 + 200 = 56600
Step 284: 56600 + 200 = 56800
Step 285: 56800 + 200 = 57000
Step 286: 57000 + 200 = 57200
Step 287: 57200 + 200 = 57400
Step 288: 57400 + 200 = 57600
Step 289: 57600 + 200 = 57800
Step 290: 57800 + 200 = 58000
Step 291: 58000 + 200 = 58200
Step 292: 58200 + 200 = 58400
Step 293: 58400 + 200 = 58600
Step 294: 58600 + 200 = 58800
Step 295: 58800 + 200 = 59000
Step 296: 59000 + 200 = 59200
Step 297: 59200 + 200 = 59400
Step 298: 59400 + 200 = 59600
Step 299: 59600 + 200 = 59800
Step 300: 59800 + 200 = 60000
Step 301: 60000 + 200 = 60200
Step 302: 60200 + 200 = 60400
Step 303: 60400 + 200 = 60600
Step 304: 60600 + 200 = 60800
Step 305: 60800 + 200 = 61000
Step 306: 61000 + 200 = 61200
Step 307: 61200 + 200 = 61400
Step 308: 61400 + 200 = 61600
Step 309: 61600 + 200 = 61800
Step 310: 61800 + 200 = 62000
Step 311: 62000 + 200 = 62200
Step 312: 62200 + 200 = 62400
Step 313: 62400 + 200 = 62600
Step 314: 62600 + 200 = 62800
Step 315: 62800 + 200 = 63000
Step 316: 63000 + 200 = 63200
Step 317: 63200 + 200 = 63400
Step 318: 63400 + 200 = 63600
Step 319: 63600 + 200 = 63800
Step 320: 63800 + 200 = 64000
Step 321: 64000 + 200 = 64200
Step 322: 64200 + 200 = 64400
Step 323: 64400 + 200 = 64600
Step 324: 64600 + 200 = 64800
Step 325: 64800 + 200 = 65000
Step 326: 65000 + 200 = 65200
Step 327: 65200 + 200 = 65400
Step 328: 65400 + 200 = 65600
Step 329: 65600 + 200 = 65800
Step 330: 65800 + 200 = 66000
Step 331: 66000 + 200 = 66200
Step 332: 66200 + 200 = 66400
Step 333: 66400 + 200 = 66600
Step 334: 66600 + 200 = 66800
Step 335: 66800 + 200 = 67000
Step 336: 67000 + 200 = 67200
Step 337: 67200 + 200 = 67400
Step 338: 67400 + 200 = 67600
Step 339: 67600 + 200 = 67800
Step 340: 67800 + 200 = 68000
Step 341: 68000 + 200 = 68200
Step 342: 68200 + 200 = 68400
Step 343: 68400 + 200 = 68600
Step 344: 68600 + 200 = 68800
Step 345: 68800 + 200 = 69000
Step 346: 69000 + 200 = 69200
Step 347: 69200 + 200 = 69400
Step 348: 69400 + 200 = 69600
Step 349: 69600 + 200 = 69800
Step 350: 69800 + 200 = 70000
Step 351: 70000 + 200 = 70200
Step 352: 70200 + 200 = 70400
Step 353: 70400 + 200 = 70600
Step 354: 70600 + 200 = 70800
Step 355: 70800 + 200 = 71000
Step 356: 71000 + 200 = 71200
Step 357: 71200 + 200 = 71400
Step 358: 71400 + 200 = 71600
Step 359: 71600 + 200 = 71800
Step 360: 71800 + 200 = 72000
Step 361: 72000 + 200 = 72200
Step 362: 72200 + 200 = 72400
Step 363: 72400 + 200 = 72600
Step 364: 72600 + 200 = 72800
Step 365: 72800 + 200 = 73000
Step 366: 73000 + 200 = 73200
Step 367: 73200 + 200 = 73400
Step 368: 73400 + 200 = 73600
Step 369: 73600 + 200 = 73800
Step 370: 73800 + 200 = 74000
Step 371: 74000 + 200 = 74200
Step 372: 74200 + 200 = 74400
Step 373: 74400 + 200 = 74600
Step 374: 74600 + 200 = 74800
Step 375: 74800 + 200 = 75000
Step 376: 75000 + 200 = 75200
Step 377: 75200 + 200 = 75400
Step 378: 75400 + 200 = 75600
Step 379: 75600 + 200 = 75800
Step 380: 75800 + 200 = 76000
Step 381: 76000 + 200 = 76200
Step 382: 76200 + 200 = 76400
Step 383: 76400 + 200 = 76600
Step 384: 76600 + 200 = 76800
Step 385: 76800 + 200 = 77000
Step 386: 77000 + 200 = 77200
Step 387: 77200 + 200 = 77400
Step 388: 77400 + 200 = 77600
Step 389: 77600 + 200 = 77800
Step 390: 77800 + 200 = 78000
Step 391: 78000 + 200 = 78200
Step 392: 78200 + 200 = 78400
Step 393: 78400 + 200 = 78600
Step 394: 78600 + 200 = 78800

So, 200*394 = 78800