Alright, let's work through 3155 times 2136 step by step
3155 × 2136 = 2136 × (3155)
+ 2136 × 5 that results in 10680
+ 2136 × 50 that results in 106800
+ 2136 × 100 that results in 213600
+ 2136 × 3000 what gives us 6408000

= 6739080
