Alright, let's work through 6121 times 6357 step by step
6121 × 6357 = 6357 × (6121)
+ 6357 × 1 which equals 6357
+ 6357 × 20 producing 127140
+ 6357 × 100 which equals 635700
+ 6357 × 6000 that equals 38142000

= 38911197
