Without delay, let's solve this. We've got 69 and we will be multiplying it by 23, that is, adding 69 to itself 23 times.
Step 1: 0 + 69 = 69
Step 2: 69 + 69 = 138
Step 3: 138 + 69 = 207
Step 4: 207 + 69 = 276
Step 5: 276 + 69 = 345
Step 6: 345 + 69 = 414
Step 7: 414 + 69 = 483
Step 8: 483 + 69 = 552
Step 9: 552 + 69 = 621
Step 10: 621 + 69 = 690
Step 11: 690 + 69 = 759
Step 12: 759 + 69 = 828
Step 13: 828 + 69 = 897
Step 14: 897 + 69 = 966
Step 15: 966 + 69 = 1035
Step 16: 1035 + 69 = 1104
Step 17: 1104 + 69 = 1173
Step 18: 1173 + 69 = 1242
Step 19: 1242 + 69 = 1311
Step 20: 1311 + 69 = 1380
Step 21: 1380 + 69 = 1449
Step 22: 1449 + 69 = 1518
Step 23: 1518 + 69 = 1587

So, 69*23 = 1587