Without delay, let's solve this. We've got 607 and we will be multiplying it by 39, that is, adding 607 to itself 39 times.
Step 1: 0 + 607 = 607
Step 2: 607 + 607 = 1214
Step 3: 1214 + 607 = 1821
Step 4: 1821 + 607 = 2428
Step 5: 2428 + 607 = 3035
Step 6: 3035 + 607 = 3642
Step 7: 3642 + 607 = 4249
Step 8: 4249 + 607 = 4856
Step 9: 4856 + 607 = 5463
Step 10: 5463 + 607 = 6070
Step 11: 6070 + 607 = 6677
Step 12: 6677 + 607 = 7284
Step 13: 7284 + 607 = 7891
Step 14: 7891 + 607 = 8498
Step 15: 8498 + 607 = 9105
Step 16: 9105 + 607 = 9712
Step 17: 9712 + 607 = 10319
Step 18: 10319 + 607 = 10926
Step 19: 10926 + 607 = 11533
Step 20: 11533 + 607 = 12140
Step 21: 12140 + 607 = 12747
Step 22: 12747 + 607 = 13354
Step 23: 13354 + 607 = 13961
Step 24: 13961 + 607 = 14568
Step 25: 14568 + 607 = 15175
Step 26: 15175 + 607 = 15782
Step 27: 15782 + 607 = 16389
Step 28: 16389 + 607 = 16996
Step 29: 16996 + 607 = 17603
Step 30: 17603 + 607 = 18210
Step 31: 18210 + 607 = 18817
Step 32: 18817 + 607 = 19424
Step 33: 19424 + 607 = 20031
Step 34: 20031 + 607 = 20638
Step 35: 20638 + 607 = 21245
Step 36: 21245 + 607 = 21852
Step 37: 21852 + 607 = 22459
Step 38: 22459 + 607 = 23066
Step 39: 23066 + 607 = 23673

So, 607*39 = 23673