Alright, let's solve this math problem step by step. First, we have the number 770. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 45. So, we're going to take the number 770 and add it to itself 45 times.
Step 1: 0 + 770 = 770
Step 2: 770 + 770 = 1540
Step 3: 1540 + 770 = 2310
Step 4: 2310 + 770 = 3080
Step 5: 3080 + 770 = 3850
Step 6: 3850 + 770 = 4620
Step 7: 4620 + 770 = 5390
Step 8: 5390 + 770 = 6160
Step 9: 6160 + 770 = 6930
Step 10: 6930 + 770 = 7700
Step 11: 7700 + 770 = 8470
Step 12: 8470 + 770 = 9240
Step 13: 9240 + 770 = 10010
Step 14: 10010 + 770 = 10780
Step 15: 10780 + 770 = 11550
Step 16: 11550 + 770 = 12320
Step 17: 12320 + 770 = 13090
Step 18: 13090 + 770 = 13860
Step 19: 13860 + 770 = 14630
Step 20: 14630 + 770 = 15400
Step 21: 15400 + 770 = 16170
Step 22: 16170 + 770 = 16940
Step 23: 16940 + 770 = 17710
Step 24: 17710 + 770 = 18480
Step 25: 18480 + 770 = 19250
Step 26: 19250 + 770 = 20020
Step 27: 20020 + 770 = 20790
Step 28: 20790 + 770 = 21560
Step 29: 21560 + 770 = 22330
Step 30: 22330 + 770 = 23100
Step 31: 23100 + 770 = 23870
Step 32: 23870 + 770 = 24640
Step 33: 24640 + 770 = 25410
Step 34: 25410 + 770 = 26180
Step 35: 26180 + 770 = 26950
Step 36: 26950 + 770 = 27720
Step 37: 27720 + 770 = 28490
Step 38: 28490 + 770 = 29260
Step 39: 29260 + 770 = 30030
Step 40: 30030 + 770 = 30800
Step 41: 30800 + 770 = 31570
Step 42: 31570 + 770 = 32340
Step 43: 32340 + 770 = 33110
Step 44: 33110 + 770 = 33880
Step 45: 33880 + 770 = 34650

So, 770*45 = 34650