Alright, let's work through 71382644 times 80278243 step by step
71382644 × 80278243 = 80278243 × (71382644)
+ 80278243 × 4 what gives us 321112972
+ 80278243 × 40 yielding 3211129720
+ 80278243 × 600 giving us 48166945800
+ 80278243 × 2000 that is equal 160556486000
+ 80278243 × 80000 giving us 6422259440000
+ 80278243 × 300000 resulting in 24083472900000
+ 80278243 × 1000000 what gives us 80278243000000
+ 80278243 × 70000000 resulting in 5619477010000000

= 5730473241014492
