OK, let's crack this. We're given 895 and our task is to multiply it by 45. Essentially, we'll be adding 895 to itself 45 times.
Step 1: 0 + 895 = 895
Step 2: 895 + 895 = 1790
Step 3: 1790 + 895 = 2685
Step 4: 2685 + 895 = 3580
Step 5: 3580 + 895 = 4475
Step 6: 4475 + 895 = 5370
Step 7: 5370 + 895 = 6265
Step 8: 6265 + 895 = 7160
Step 9: 7160 + 895 = 8055
Step 10: 8055 + 895 = 8950
Step 11: 8950 + 895 = 9845
Step 12: 9845 + 895 = 10740
Step 13: 10740 + 895 = 11635
Step 14: 11635 + 895 = 12530
Step 15: 12530 + 895 = 13425
Step 16: 13425 + 895 = 14320
Step 17: 14320 + 895 = 15215
Step 18: 15215 + 895 = 16110
Step 19: 16110 + 895 = 17005
Step 20: 17005 + 895 = 17900
Step 21: 17900 + 895 = 18795
Step 22: 18795 + 895 = 19690
Step 23: 19690 + 895 = 20585
Step 24: 20585 + 895 = 21480
Step 25: 21480 + 895 = 22375
Step 26: 22375 + 895 = 23270
Step 27: 23270 + 895 = 24165
Step 28: 24165 + 895 = 25060
Step 29: 25060 + 895 = 25955
Step 30: 25955 + 895 = 26850
Step 31: 26850 + 895 = 27745
Step 32: 27745 + 895 = 28640
Step 33: 28640 + 895 = 29535
Step 34: 29535 + 895 = 30430
Step 35: 30430 + 895 = 31325
Step 36: 31325 + 895 = 32220
Step 37: 32220 + 895 = 33115
Step 38: 33115 + 895 = 34010
Step 39: 34010 + 895 = 34905
Step 40: 34905 + 895 = 35800
Step 41: 35800 + 895 = 36695
Step 42: 36695 + 895 = 37590
Step 43: 37590 + 895 = 38485
Step 44: 38485 + 895 = 39380
Step 45: 39380 + 895 = 40275

So, 895*45 = 40275