OK, let's crack this. We're given 961 and our task is to multiply it by 70. Essentially, we'll be adding 961 to itself 70 times.
Step 1: 0 + 961 = 961
Step 2: 961 + 961 = 1922
Step 3: 1922 + 961 = 2883
Step 4: 2883 + 961 = 3844
Step 5: 3844 + 961 = 4805
Step 6: 4805 + 961 = 5766
Step 7: 5766 + 961 = 6727
Step 8: 6727 + 961 = 7688
Step 9: 7688 + 961 = 8649
Step 10: 8649 + 961 = 9610
Step 11: 9610 + 961 = 10571
Step 12: 10571 + 961 = 11532
Step 13: 11532 + 961 = 12493
Step 14: 12493 + 961 = 13454
Step 15: 13454 + 961 = 14415
Step 16: 14415 + 961 = 15376
Step 17: 15376 + 961 = 16337
Step 18: 16337 + 961 = 17298
Step 19: 17298 + 961 = 18259
Step 20: 18259 + 961 = 19220
Step 21: 19220 + 961 = 20181
Step 22: 20181 + 961 = 21142
Step 23: 21142 + 961 = 22103
Step 24: 22103 + 961 = 23064
Step 25: 23064 + 961 = 24025
Step 26: 24025 + 961 = 24986
Step 27: 24986 + 961 = 25947
Step 28: 25947 + 961 = 26908
Step 29: 26908 + 961 = 27869
Step 30: 27869 + 961 = 28830
Step 31: 28830 + 961 = 29791
Step 32: 29791 + 961 = 30752
Step 33: 30752 + 961 = 31713
Step 34: 31713 + 961 = 32674
Step 35: 32674 + 961 = 33635
Step 36: 33635 + 961 = 34596
Step 37: 34596 + 961 = 35557
Step 38: 35557 + 961 = 36518
Step 39: 36518 + 961 = 37479
Step 40: 37479 + 961 = 38440
Step 41: 38440 + 961 = 39401
Step 42: 39401 + 961 = 40362
Step 43: 40362 + 961 = 41323
Step 44: 41323 + 961 = 42284
Step 45: 42284 + 961 = 43245
Step 46: 43245 + 961 = 44206
Step 47: 44206 + 961 = 45167
Step 48: 45167 + 961 = 46128
Step 49: 46128 + 961 = 47089
Step 50: 47089 + 961 = 48050
Step 51: 48050 + 961 = 49011
Step 52: 49011 + 961 = 49972
Step 53: 49972 + 961 = 50933
Step 54: 50933 + 961 = 51894
Step 55: 51894 + 961 = 52855
Step 56: 52855 + 961 = 53816
Step 57: 53816 + 961 = 54777
Step 58: 54777 + 961 = 55738
Step 59: 55738 + 961 = 56699
Step 60: 56699 + 961 = 57660
Step 61: 57660 + 961 = 58621
Step 62: 58621 + 961 = 59582
Step 63: 59582 + 961 = 60543
Step 64: 60543 + 961 = 61504
Step 65: 61504 + 961 = 62465
Step 66: 62465 + 961 = 63426
Step 67: 63426 + 961 = 64387
Step 68: 64387 + 961 = 65348
Step 69: 65348 + 961 = 66309
Step 70: 66309 + 961 = 67270

So, 961*70 = 67270