Alright, let's work through 7240 times 2978 step by step
7240 × 2978 = 2978 × (7240)
+ 2978 × 0 yielding 0
+ 2978 × 40 yielding 119120
+ 2978 × 200 giving us 595600
+ 2978 × 7000 what gives us 20846000

= 21560720
