Alright, let's work through 2807 times 5500 step by step
2807 × 5500 = 5500 × (2807)
+ 5500 × 7 that equals 38500
+ 5500 × 00 giving us 0
+ 5500 × 800 that equals 4400000
+ 5500 × 2000 that results in 11000000

= 15438500
