Alright, let's work through 80239084 times 54272447 step by step
80239084 × 54272447 = 54272447 × (80239084)
+ 54272447 × 4 resulting in 217089788
+ 54272447 × 80 producing 4341795760
+ 54272447 × 000 yielding 0
+ 54272447 × 9000 that results in 488452023000
+ 54272447 × 30000 that results in 1628173410000
+ 54272447 × 200000 that is equal 10854489400000
+ 54272447 × 0000000 yielding 0
+ 54272447 × 80000000 what gives us 4341795760000000

= 4354771433718548
