Alright, let's work through 3915 times 1371 step by step
3915 × 1371 = 1371 × (3915)
+ 1371 × 5 producing 6855
+ 1371 × 10 resulting in 13710
+ 1371 × 900 giving us 1233900
+ 1371 × 3000 resulting in 4113000

= 5367465
