Alright, let's work through 5740 times 3977 step by step
5740 × 3977 = 3977 × (5740)
+ 3977 × 0 giving us 0
+ 3977 × 40 which equals 159080
+ 3977 × 700 that equals 2783900
+ 3977 × 5000 that is equal 19885000

= 22827980
