Alright, let's solve this math problem step by step. First, we have the number 853. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 57. So, we're going to take the number 853 and add it to itself 57 times.
Step 1: 0 + 853 = 853
Step 2: 853 + 853 = 1706
Step 3: 1706 + 853 = 2559
Step 4: 2559 + 853 = 3412
Step 5: 3412 + 853 = 4265
Step 6: 4265 + 853 = 5118
Step 7: 5118 + 853 = 5971
Step 8: 5971 + 853 = 6824
Step 9: 6824 + 853 = 7677
Step 10: 7677 + 853 = 8530
Step 11: 8530 + 853 = 9383
Step 12: 9383 + 853 = 10236
Step 13: 10236 + 853 = 11089
Step 14: 11089 + 853 = 11942
Step 15: 11942 + 853 = 12795
Step 16: 12795 + 853 = 13648
Step 17: 13648 + 853 = 14501
Step 18: 14501 + 853 = 15354
Step 19: 15354 + 853 = 16207
Step 20: 16207 + 853 = 17060
Step 21: 17060 + 853 = 17913
Step 22: 17913 + 853 = 18766
Step 23: 18766 + 853 = 19619
Step 24: 19619 + 853 = 20472
Step 25: 20472 + 853 = 21325
Step 26: 21325 + 853 = 22178
Step 27: 22178 + 853 = 23031
Step 28: 23031 + 853 = 23884
Step 29: 23884 + 853 = 24737
Step 30: 24737 + 853 = 25590
Step 31: 25590 + 853 = 26443
Step 32: 26443 + 853 = 27296
Step 33: 27296 + 853 = 28149
Step 34: 28149 + 853 = 29002
Step 35: 29002 + 853 = 29855
Step 36: 29855 + 853 = 30708
Step 37: 30708 + 853 = 31561
Step 38: 31561 + 853 = 32414
Step 39: 32414 + 853 = 33267
Step 40: 33267 + 853 = 34120
Step 41: 34120 + 853 = 34973
Step 42: 34973 + 853 = 35826
Step 43: 35826 + 853 = 36679
Step 44: 36679 + 853 = 37532
Step 45: 37532 + 853 = 38385
Step 46: 38385 + 853 = 39238
Step 47: 39238 + 853 = 40091
Step 48: 40091 + 853 = 40944
Step 49: 40944 + 853 = 41797
Step 50: 41797 + 853 = 42650
Step 51: 42650 + 853 = 43503
Step 52: 43503 + 853 = 44356
Step 53: 44356 + 853 = 45209
Step 54: 45209 + 853 = 46062
Step 55: 46062 + 853 = 46915
Step 56: 46915 + 853 = 47768
Step 57: 47768 + 853 = 48621

So, 853*57 = 48621