Alright, let's work through 3402 times 5115 step by step
3402 × 5115 = 5115 × (3402)
+ 5115 × 2 resulting in 10230
+ 5115 × 00 resulting in 0
+ 5115 × 400 producing 2046000
+ 5115 × 3000 what gives us 15345000

= 17401230
