Alright, let's work through 5778 times 2445 step by step
5778 × 2445 = 2445 × (5778)
+ 2445 × 8 that is equal 19560
+ 2445 × 70 that is equal 171150
+ 2445 × 700 that equals 1711500
+ 2445 × 5000 giving us 12225000

= 14127210
