Sure thing, let's get straight to it. We start with 339 and we're going to multiply it by 5, which means adding 339 to itself 5 times.
Step 1: 0 + 339 = 339
Step 2: 339 + 339 = 678
Step 3: 678 + 339 = 1017
Step 4: 1017 + 339 = 1356
Step 5: 1356 + 339 = 1695

So, 339*5 = 1695