Alright, let's work through 5379 times 311 step by step
5379 × 311 = 311 × (5379)
+ 311 × 9 giving us 2799
+ 311 × 70 producing 21770
+ 311 × 300 producing 93300
+ 311 × 5000 yielding 1555000

= 1672869
