OK, let's crack this. We're given 10 and our task is to multiply it by 65. Essentially, we'll be adding 10 to itself 65 times.
Step 1: 0 + 10 = 10
Step 2: 10 + 10 = 20
Step 3: 20 + 10 = 30
Step 4: 30 + 10 = 40
Step 5: 40 + 10 = 50
Step 6: 50 + 10 = 60
Step 7: 60 + 10 = 70
Step 8: 70 + 10 = 80
Step 9: 80 + 10 = 90
Step 10: 90 + 10 = 100
Step 11: 100 + 10 = 110
Step 12: 110 + 10 = 120
Step 13: 120 + 10 = 130
Step 14: 130 + 10 = 140
Step 15: 140 + 10 = 150
Step 16: 150 + 10 = 160
Step 17: 160 + 10 = 170
Step 18: 170 + 10 = 180
Step 19: 180 + 10 = 190
Step 20: 190 + 10 = 200
Step 21: 200 + 10 = 210
Step 22: 210 + 10 = 220
Step 23: 220 + 10 = 230
Step 24: 230 + 10 = 240
Step 25: 240 + 10 = 250
Step 26: 250 + 10 = 260
Step 27: 260 + 10 = 270
Step 28: 270 + 10 = 280
Step 29: 280 + 10 = 290
Step 30: 290 + 10 = 300
Step 31: 300 + 10 = 310
Step 32: 310 + 10 = 320
Step 33: 320 + 10 = 330
Step 34: 330 + 10 = 340
Step 35: 340 + 10 = 350
Step 36: 350 + 10 = 360
Step 37: 360 + 10 = 370
Step 38: 370 + 10 = 380
Step 39: 380 + 10 = 390
Step 40: 390 + 10 = 400
Step 41: 400 + 10 = 410
Step 42: 410 + 10 = 420
Step 43: 420 + 10 = 430
Step 44: 430 + 10 = 440
Step 45: 440 + 10 = 450
Step 46: 450 + 10 = 460
Step 47: 460 + 10 = 470
Step 48: 470 + 10 = 480
Step 49: 480 + 10 = 490
Step 50: 490 + 10 = 500
Step 51: 500 + 10 = 510
Step 52: 510 + 10 = 520
Step 53: 520 + 10 = 530
Step 54: 530 + 10 = 540
Step 55: 540 + 10 = 550
Step 56: 550 + 10 = 560
Step 57: 560 + 10 = 570
Step 58: 570 + 10 = 580
Step 59: 580 + 10 = 590
Step 60: 590 + 10 = 600
Step 61: 600 + 10 = 610
Step 62: 610 + 10 = 620
Step 63: 620 + 10 = 630
Step 64: 630 + 10 = 640
Step 65: 640 + 10 = 650

So, 10*65 = 650