Alright, let's work through 2731 times 5776 step by step
2731 × 5776 = 5776 × (2731)
+ 5776 × 1 that equals 5776
+ 5776 × 30 yielding 173280
+ 5776 × 700 that results in 4043200
+ 5776 × 2000 resulting in 11552000

= 15774256
