OK, let's crack this. We're given 824 and our task is to multiply it by 125. Essentially, we'll be adding 824 to itself 125 times.
Step 1: 0 + 824 = 824
Step 2: 824 + 824 = 1648
Step 3: 1648 + 824 = 2472
Step 4: 2472 + 824 = 3296
Step 5: 3296 + 824 = 4120
Step 6: 4120 + 824 = 4944
Step 7: 4944 + 824 = 5768
Step 8: 5768 + 824 = 6592
Step 9: 6592 + 824 = 7416
Step 10: 7416 + 824 = 8240
Step 11: 8240 + 824 = 9064
Step 12: 9064 + 824 = 9888
Step 13: 9888 + 824 = 10712
Step 14: 10712 + 824 = 11536
Step 15: 11536 + 824 = 12360
Step 16: 12360 + 824 = 13184
Step 17: 13184 + 824 = 14008
Step 18: 14008 + 824 = 14832
Step 19: 14832 + 824 = 15656
Step 20: 15656 + 824 = 16480
Step 21: 16480 + 824 = 17304
Step 22: 17304 + 824 = 18128
Step 23: 18128 + 824 = 18952
Step 24: 18952 + 824 = 19776
Step 25: 19776 + 824 = 20600
Step 26: 20600 + 824 = 21424
Step 27: 21424 + 824 = 22248
Step 28: 22248 + 824 = 23072
Step 29: 23072 + 824 = 23896
Step 30: 23896 + 824 = 24720
Step 31: 24720 + 824 = 25544
Step 32: 25544 + 824 = 26368
Step 33: 26368 + 824 = 27192
Step 34: 27192 + 824 = 28016
Step 35: 28016 + 824 = 28840
Step 36: 28840 + 824 = 29664
Step 37: 29664 + 824 = 30488
Step 38: 30488 + 824 = 31312
Step 39: 31312 + 824 = 32136
Step 40: 32136 + 824 = 32960
Step 41: 32960 + 824 = 33784
Step 42: 33784 + 824 = 34608
Step 43: 34608 + 824 = 35432
Step 44: 35432 + 824 = 36256
Step 45: 36256 + 824 = 37080
Step 46: 37080 + 824 = 37904
Step 47: 37904 + 824 = 38728
Step 48: 38728 + 824 = 39552
Step 49: 39552 + 824 = 40376
Step 50: 40376 + 824 = 41200
Step 51: 41200 + 824 = 42024
Step 52: 42024 + 824 = 42848
Step 53: 42848 + 824 = 43672
Step 54: 43672 + 824 = 44496
Step 55: 44496 + 824 = 45320
Step 56: 45320 + 824 = 46144
Step 57: 46144 + 824 = 46968
Step 58: 46968 + 824 = 47792
Step 59: 47792 + 824 = 48616
Step 60: 48616 + 824 = 49440
Step 61: 49440 + 824 = 50264
Step 62: 50264 + 824 = 51088
Step 63: 51088 + 824 = 51912
Step 64: 51912 + 824 = 52736
Step 65: 52736 + 824 = 53560
Step 66: 53560 + 824 = 54384
Step 67: 54384 + 824 = 55208
Step 68: 55208 + 824 = 56032
Step 69: 56032 + 824 = 56856
Step 70: 56856 + 824 = 57680
Step 71: 57680 + 824 = 58504
Step 72: 58504 + 824 = 59328
Step 73: 59328 + 824 = 60152
Step 74: 60152 + 824 = 60976
Step 75: 60976 + 824 = 61800
Step 76: 61800 + 824 = 62624
Step 77: 62624 + 824 = 63448
Step 78: 63448 + 824 = 64272
Step 79: 64272 + 824 = 65096
Step 80: 65096 + 824 = 65920
Step 81: 65920 + 824 = 66744
Step 82: 66744 + 824 = 67568
Step 83: 67568 + 824 = 68392
Step 84: 68392 + 824 = 69216
Step 85: 69216 + 824 = 70040
Step 86: 70040 + 824 = 70864
Step 87: 70864 + 824 = 71688
Step 88: 71688 + 824 = 72512
Step 89: 72512 + 824 = 73336
Step 90: 73336 + 824 = 74160
Step 91: 74160 + 824 = 74984
Step 92: 74984 + 824 = 75808
Step 93: 75808 + 824 = 76632
Step 94: 76632 + 824 = 77456
Step 95: 77456 + 824 = 78280
Step 96: 78280 + 824 = 79104
Step 97: 79104 + 824 = 79928
Step 98: 79928 + 824 = 80752
Step 99: 80752 + 824 = 81576
Step 100: 81576 + 824 = 82400
Step 101: 82400 + 824 = 83224
Step 102: 83224 + 824 = 84048
Step 103: 84048 + 824 = 84872
Step 104: 84872 + 824 = 85696
Step 105: 85696 + 824 = 86520
Step 106: 86520 + 824 = 87344
Step 107: 87344 + 824 = 88168
Step 108: 88168 + 824 = 88992
Step 109: 88992 + 824 = 89816
Step 110: 89816 + 824 = 90640
Step 111: 90640 + 824 = 91464
Step 112: 91464 + 824 = 92288
Step 113: 92288 + 824 = 93112
Step 114: 93112 + 824 = 93936
Step 115: 93936 + 824 = 94760
Step 116: 94760 + 824 = 95584
Step 117: 95584 + 824 = 96408
Step 118: 96408 + 824 = 97232
Step 119: 97232 + 824 = 98056
Step 120: 98056 + 824 = 98880
Step 121: 98880 + 824 = 99704
Step 122: 99704 + 824 = 100528
Step 123: 100528 + 824 = 101352
Step 124: 101352 + 824 = 102176
Step 125: 102176 + 824 = 103000

So, 824*125 = 103000