Alright, let's solve this math problem step by step. First, we have the number 873. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 35. So, we're going to take the number 873 and add it to itself 35 times.
Step 1: 0 + 873 = 873
Step 2: 873 + 873 = 1746
Step 3: 1746 + 873 = 2619
Step 4: 2619 + 873 = 3492
Step 5: 3492 + 873 = 4365
Step 6: 4365 + 873 = 5238
Step 7: 5238 + 873 = 6111
Step 8: 6111 + 873 = 6984
Step 9: 6984 + 873 = 7857
Step 10: 7857 + 873 = 8730
Step 11: 8730 + 873 = 9603
Step 12: 9603 + 873 = 10476
Step 13: 10476 + 873 = 11349
Step 14: 11349 + 873 = 12222
Step 15: 12222 + 873 = 13095
Step 16: 13095 + 873 = 13968
Step 17: 13968 + 873 = 14841
Step 18: 14841 + 873 = 15714
Step 19: 15714 + 873 = 16587
Step 20: 16587 + 873 = 17460
Step 21: 17460 + 873 = 18333
Step 22: 18333 + 873 = 19206
Step 23: 19206 + 873 = 20079
Step 24: 20079 + 873 = 20952
Step 25: 20952 + 873 = 21825
Step 26: 21825 + 873 = 22698
Step 27: 22698 + 873 = 23571
Step 28: 23571 + 873 = 24444
Step 29: 24444 + 873 = 25317
Step 30: 25317 + 873 = 26190
Step 31: 26190 + 873 = 27063
Step 32: 27063 + 873 = 27936
Step 33: 27936 + 873 = 28809
Step 34: 28809 + 873 = 29682
Step 35: 29682 + 873 = 30555

So, 873*35 = 30555