Alright, let's work through 6120 times 513 step by step
6120 × 513 = 513 × (6120)
+ 513 × 0 resulting in 0
+ 513 × 20 that results in 10260
+ 513 × 100 what gives us 51300
+ 513 × 6000 producing 3078000

= 3139560
