Alright, let's work through 2155 times 1317 step by step
2155 × 1317 = 1317 × (2155)
+ 1317 × 5 yielding 6585
+ 1317 × 50 giving us 65850
+ 1317 × 100 what gives us 131700
+ 1317 × 2000 that results in 2634000

= 2838135
