OK, let's crack this. We're given 590 and our task is to multiply it by 7. Essentially, we'll be adding 590 to itself 7 times.
Step 1: 0 + 590 = 590
Step 2: 590 + 590 = 1180
Step 3: 1180 + 590 = 1770
Step 4: 1770 + 590 = 2360
Step 5: 2360 + 590 = 2950
Step 6: 2950 + 590 = 3540
Step 7: 3540 + 590 = 4130

So, 590*7 = 4130