Alright, let's work through 2740 times 6578 step by step
2740 × 6578 = 6578 × (2740)
+ 6578 × 0 that equals 0
+ 6578 × 40 resulting in 263120
+ 6578 × 700 that results in 4604600
+ 6578 × 2000 that is equal 13156000

= 18023720
