Alright, let's work through 2810 times 7156 step by step
2810 × 7156 = 7156 × (2810)
+ 7156 × 0 that is equal 0
+ 7156 × 10 which equals 71560
+ 7156 × 800 what gives us 5724800
+ 7156 × 2000 what gives us 14312000

= 20108360
