Alright, let's work through 5141 times 4086 step by step
5141 × 4086 = 4086 × (5141)
+ 4086 × 1 giving us 4086
+ 4086 × 40 yielding 163440
+ 4086 × 100 that equals 408600
+ 4086 × 5000 that results in 20430000

= 21006126
