Sure thing! We've got 800 and we're gonna multiply it by 358. That's the same as adding 800 to itself 358 times.
Step 1: 0 + 800 = 800
Step 2: 800 + 800 = 1600
Step 3: 1600 + 800 = 2400
Step 4: 2400 + 800 = 3200
Step 5: 3200 + 800 = 4000
Step 6: 4000 + 800 = 4800
Step 7: 4800 + 800 = 5600
Step 8: 5600 + 800 = 6400
Step 9: 6400 + 800 = 7200
Step 10: 7200 + 800 = 8000
Step 11: 8000 + 800 = 8800
Step 12: 8800 + 800 = 9600
Step 13: 9600 + 800 = 10400
Step 14: 10400 + 800 = 11200
Step 15: 11200 + 800 = 12000
Step 16: 12000 + 800 = 12800
Step 17: 12800 + 800 = 13600
Step 18: 13600 + 800 = 14400
Step 19: 14400 + 800 = 15200
Step 20: 15200 + 800 = 16000
Step 21: 16000 + 800 = 16800
Step 22: 16800 + 800 = 17600
Step 23: 17600 + 800 = 18400
Step 24: 18400 + 800 = 19200
Step 25: 19200 + 800 = 20000
Step 26: 20000 + 800 = 20800
Step 27: 20800 + 800 = 21600
Step 28: 21600 + 800 = 22400
Step 29: 22400 + 800 = 23200
Step 30: 23200 + 800 = 24000
Step 31: 24000 + 800 = 24800
Step 32: 24800 + 800 = 25600
Step 33: 25600 + 800 = 26400
Step 34: 26400 + 800 = 27200
Step 35: 27200 + 800 = 28000
Step 36: 28000 + 800 = 28800
Step 37: 28800 + 800 = 29600
Step 38: 29600 + 800 = 30400
Step 39: 30400 + 800 = 31200
Step 40: 31200 + 800 = 32000
Step 41: 32000 + 800 = 32800
Step 42: 32800 + 800 = 33600
Step 43: 33600 + 800 = 34400
Step 44: 34400 + 800 = 35200
Step 45: 35200 + 800 = 36000
Step 46: 36000 + 800 = 36800
Step 47: 36800 + 800 = 37600
Step 48: 37600 + 800 = 38400
Step 49: 38400 + 800 = 39200
Step 50: 39200 + 800 = 40000
Step 51: 40000 + 800 = 40800
Step 52: 40800 + 800 = 41600
Step 53: 41600 + 800 = 42400
Step 54: 42400 + 800 = 43200
Step 55: 43200 + 800 = 44000
Step 56: 44000 + 800 = 44800
Step 57: 44800 + 800 = 45600
Step 58: 45600 + 800 = 46400
Step 59: 46400 + 800 = 47200
Step 60: 47200 + 800 = 48000
Step 61: 48000 + 800 = 48800
Step 62: 48800 + 800 = 49600
Step 63: 49600 + 800 = 50400
Step 64: 50400 + 800 = 51200
Step 65: 51200 + 800 = 52000
Step 66: 52000 + 800 = 52800
Step 67: 52800 + 800 = 53600
Step 68: 53600 + 800 = 54400
Step 69: 54400 + 800 = 55200
Step 70: 55200 + 800 = 56000
Step 71: 56000 + 800 = 56800
Step 72: 56800 + 800 = 57600
Step 73: 57600 + 800 = 58400
Step 74: 58400 + 800 = 59200
Step 75: 59200 + 800 = 60000
Step 76: 60000 + 800 = 60800
Step 77: 60800 + 800 = 61600
Step 78: 61600 + 800 = 62400
Step 79: 62400 + 800 = 63200
Step 80: 63200 + 800 = 64000
Step 81: 64000 + 800 = 64800
Step 82: 64800 + 800 = 65600
Step 83: 65600 + 800 = 66400
Step 84: 66400 + 800 = 67200
Step 85: 67200 + 800 = 68000
Step 86: 68000 + 800 = 68800
Step 87: 68800 + 800 = 69600
Step 88: 69600 + 800 = 70400
Step 89: 70400 + 800 = 71200
Step 90: 71200 + 800 = 72000
Step 91: 72000 + 800 = 72800
Step 92: 72800 + 800 = 73600
Step 93: 73600 + 800 = 74400
Step 94: 74400 + 800 = 75200
Step 95: 75200 + 800 = 76000
Step 96: 76000 + 800 = 76800
Step 97: 76800 + 800 = 77600
Step 98: 77600 + 800 = 78400
Step 99: 78400 + 800 = 79200
Step 100: 79200 + 800 = 80000
Step 101: 80000 + 800 = 80800
Step 102: 80800 + 800 = 81600
Step 103: 81600 + 800 = 82400
Step 104: 82400 + 800 = 83200
Step 105: 83200 + 800 = 84000
Step 106: 84000 + 800 = 84800
Step 107: 84800 + 800 = 85600
Step 108: 85600 + 800 = 86400
Step 109: 86400 + 800 = 87200
Step 110: 87200 + 800 = 88000
Step 111: 88000 + 800 = 88800
Step 112: 88800 + 800 = 89600
Step 113: 89600 + 800 = 90400
Step 114: 90400 + 800 = 91200
Step 115: 91200 + 800 = 92000
Step 116: 92000 + 800 = 92800
Step 117: 92800 + 800 = 93600
Step 118: 93600 + 800 = 94400
Step 119: 94400 + 800 = 95200
Step 120: 95200 + 800 = 96000
Step 121: 96000 + 800 = 96800
Step 122: 96800 + 800 = 97600
Step 123: 97600 + 800 = 98400
Step 124: 98400 + 800 = 99200
Step 125: 99200 + 800 = 100000
Step 126: 100000 + 800 = 100800
Step 127: 100800 + 800 = 101600
Step 128: 101600 + 800 = 102400
Step 129: 102400 + 800 = 103200
Step 130: 103200 + 800 = 104000
Step 131: 104000 + 800 = 104800
Step 132: 104800 + 800 = 105600
Step 133: 105600 + 800 = 106400
Step 134: 106400 + 800 = 107200
Step 135: 107200 + 800 = 108000
Step 136: 108000 + 800 = 108800
Step 137: 108800 + 800 = 109600
Step 138: 109600 + 800 = 110400
Step 139: 110400 + 800 = 111200
Step 140: 111200 + 800 = 112000
Step 141: 112000 + 800 = 112800
Step 142: 112800 + 800 = 113600
Step 143: 113600 + 800 = 114400
Step 144: 114400 + 800 = 115200
Step 145: 115200 + 800 = 116000
Step 146: 116000 + 800 = 116800
Step 147: 116800 + 800 = 117600
Step 148: 117600 + 800 = 118400
Step 149: 118400 + 800 = 119200
Step 150: 119200 + 800 = 120000
Step 151: 120000 + 800 = 120800
Step 152: 120800 + 800 = 121600
Step 153: 121600 + 800 = 122400
Step 154: 122400 + 800 = 123200
Step 155: 123200 + 800 = 124000
Step 156: 124000 + 800 = 124800
Step 157: 124800 + 800 = 125600
Step 158: 125600 + 800 = 126400
Step 159: 126400 + 800 = 127200
Step 160: 127200 + 800 = 128000
Step 161: 128000 + 800 = 128800
Step 162: 128800 + 800 = 129600
Step 163: 129600 + 800 = 130400
Step 164: 130400 + 800 = 131200
Step 165: 131200 + 800 = 132000
Step 166: 132000 + 800 = 132800
Step 167: 132800 + 800 = 133600
Step 168: 133600 + 800 = 134400
Step 169: 134400 + 800 = 135200
Step 170: 135200 + 800 = 136000
Step 171: 136000 + 800 = 136800
Step 172: 136800 + 800 = 137600
Step 173: 137600 + 800 = 138400
Step 174: 138400 + 800 = 139200
Step 175: 139200 + 800 = 140000
Step 176: 140000 + 800 = 140800
Step 177: 140800 + 800 = 141600
Step 178: 141600 + 800 = 142400
Step 179: 142400 + 800 = 143200
Step 180: 143200 + 800 = 144000
Step 181: 144000 + 800 = 144800
Step 182: 144800 + 800 = 145600
Step 183: 145600 + 800 = 146400
Step 184: 146400 + 800 = 147200
Step 185: 147200 + 800 = 148000
Step 186: 148000 + 800 = 148800
Step 187: 148800 + 800 = 149600
Step 188: 149600 + 800 = 150400
Step 189: 150400 + 800 = 151200
Step 190: 151200 + 800 = 152000
Step 191: 152000 + 800 = 152800
Step 192: 152800 + 800 = 153600
Step 193: 153600 + 800 = 154400
Step 194: 154400 + 800 = 155200
Step 195: 155200 + 800 = 156000
Step 196: 156000 + 800 = 156800
Step 197: 156800 + 800 = 157600
Step 198: 157600 + 800 = 158400
Step 199: 158400 + 800 = 159200
Step 200: 159200 + 800 = 160000
Step 201: 160000 + 800 = 160800
Step 202: 160800 + 800 = 161600
Step 203: 161600 + 800 = 162400
Step 204: 162400 + 800 = 163200
Step 205: 163200 + 800 = 164000
Step 206: 164000 + 800 = 164800
Step 207: 164800 + 800 = 165600
Step 208: 165600 + 800 = 166400
Step 209: 166400 + 800 = 167200
Step 210: 167200 + 800 = 168000
Step 211: 168000 + 800 = 168800
Step 212: 168800 + 800 = 169600
Step 213: 169600 + 800 = 170400
Step 214: 170400 + 800 = 171200
Step 215: 171200 + 800 = 172000
Step 216: 172000 + 800 = 172800
Step 217: 172800 + 800 = 173600
Step 218: 173600 + 800 = 174400
Step 219: 174400 + 800 = 175200
Step 220: 175200 + 800 = 176000
Step 221: 176000 + 800 = 176800
Step 222: 176800 + 800 = 177600
Step 223: 177600 + 800 = 178400
Step 224: 178400 + 800 = 179200
Step 225: 179200 + 800 = 180000
Step 226: 180000 + 800 = 180800
Step 227: 180800 + 800 = 181600
Step 228: 181600 + 800 = 182400
Step 229: 182400 + 800 = 183200
Step 230: 183200 + 800 = 184000
Step 231: 184000 + 800 = 184800
Step 232: 184800 + 800 = 185600
Step 233: 185600 + 800 = 186400
Step 234: 186400 + 800 = 187200
Step 235: 187200 + 800 = 188000
Step 236: 188000 + 800 = 188800
Step 237: 188800 + 800 = 189600
Step 238: 189600 + 800 = 190400
Step 239: 190400 + 800 = 191200
Step 240: 191200 + 800 = 192000
Step 241: 192000 + 800 = 192800
Step 242: 192800 + 800 = 193600
Step 243: 193600 + 800 = 194400
Step 244: 194400 + 800 = 195200
Step 245: 195200 + 800 = 196000
Step 246: 196000 + 800 = 196800
Step 247: 196800 + 800 = 197600
Step 248: 197600 + 800 = 198400
Step 249: 198400 + 800 = 199200
Step 250: 199200 + 800 = 200000
Step 251: 200000 + 800 = 200800
Step 252: 200800 + 800 = 201600
Step 253: 201600 + 800 = 202400
Step 254: 202400 + 800 = 203200
Step 255: 203200 + 800 = 204000
Step 256: 204000 + 800 = 204800
Step 257: 204800 + 800 = 205600
Step 258: 205600 + 800 = 206400
Step 259: 206400 + 800 = 207200
Step 260: 207200 + 800 = 208000
Step 261: 208000 + 800 = 208800
Step 262: 208800 + 800 = 209600
Step 263: 209600 + 800 = 210400
Step 264: 210400 + 800 = 211200
Step 265: 211200 + 800 = 212000
Step 266: 212000 + 800 = 212800
Step 267: 212800 + 800 = 213600
Step 268: 213600 + 800 = 214400
Step 269: 214400 + 800 = 215200
Step 270: 215200 + 800 = 216000
Step 271: 216000 + 800 = 216800
Step 272: 216800 + 800 = 217600
Step 273: 217600 + 800 = 218400
Step 274: 218400 + 800 = 219200
Step 275: 219200 + 800 = 220000
Step 276: 220000 + 800 = 220800
Step 277: 220800 + 800 = 221600
Step 278: 221600 + 800 = 222400
Step 279: 222400 + 800 = 223200
Step 280: 223200 + 800 = 224000
Step 281: 224000 + 800 = 224800
Step 282: 224800 + 800 = 225600
Step 283: 225600 + 800 = 226400
Step 284: 226400 + 800 = 227200
Step 285: 227200 + 800 = 228000
Step 286: 228000 + 800 = 228800
Step 287: 228800 + 800 = 229600
Step 288: 229600 + 800 = 230400
Step 289: 230400 + 800 = 231200
Step 290: 231200 + 800 = 232000
Step 291: 232000 + 800 = 232800
Step 292: 232800 + 800 = 233600
Step 293: 233600 + 800 = 234400
Step 294: 234400 + 800 = 235200
Step 295: 235200 + 800 = 236000
Step 296: 236000 + 800 = 236800
Step 297: 236800 + 800 = 237600
Step 298: 237600 + 800 = 238400
Step 299: 238400 + 800 = 239200
Step 300: 239200 + 800 = 240000
Step 301: 240000 + 800 = 240800
Step 302: 240800 + 800 = 241600
Step 303: 241600 + 800 = 242400
Step 304: 242400 + 800 = 243200
Step 305: 243200 + 800 = 244000
Step 306: 244000 + 800 = 244800
Step 307: 244800 + 800 = 245600
Step 308: 245600 + 800 = 246400
Step 309: 246400 + 800 = 247200
Step 310: 247200 + 800 = 248000
Step 311: 248000 + 800 = 248800
Step 312: 248800 + 800 = 249600
Step 313: 249600 + 800 = 250400
Step 314: 250400 + 800 = 251200
Step 315: 251200 + 800 = 252000
Step 316: 252000 + 800 = 252800
Step 317: 252800 + 800 = 253600
Step 318: 253600 + 800 = 254400
Step 319: 254400 + 800 = 255200
Step 320: 255200 + 800 = 256000
Step 321: 256000 + 800 = 256800
Step 322: 256800 + 800 = 257600
Step 323: 257600 + 800 = 258400
Step 324: 258400 + 800 = 259200
Step 325: 259200 + 800 = 260000
Step 326: 260000 + 800 = 260800
Step 327: 260800 + 800 = 261600
Step 328: 261600 + 800 = 262400
Step 329: 262400 + 800 = 263200
Step 330: 263200 + 800 = 264000
Step 331: 264000 + 800 = 264800
Step 332: 264800 + 800 = 265600
Step 333: 265600 + 800 = 266400
Step 334: 266400 + 800 = 267200
Step 335: 267200 + 800 = 268000
Step 336: 268000 + 800 = 268800
Step 337: 268800 + 800 = 269600
Step 338: 269600 + 800 = 270400
Step 339: 270400 + 800 = 271200
Step 340: 271200 + 800 = 272000
Step 341: 272000 + 800 = 272800
Step 342: 272800 + 800 = 273600
Step 343: 273600 + 800 = 274400
Step 344: 274400 + 800 = 275200
Step 345: 275200 + 800 = 276000
Step 346: 276000 + 800 = 276800
Step 347: 276800 + 800 = 277600
Step 348: 277600 + 800 = 278400
Step 349: 278400 + 800 = 279200
Step 350: 279200 + 800 = 280000
Step 351: 280000 + 800 = 280800
Step 352: 280800 + 800 = 281600
Step 353: 281600 + 800 = 282400
Step 354: 282400 + 800 = 283200
Step 355: 283200 + 800 = 284000
Step 356: 284000 + 800 = 284800
Step 357: 284800 + 800 = 285600
Step 358: 285600 + 800 = 286400

So, 800*358 = 286400