Alright, let's work through 80384645 times 17684472 step by step
80384645 × 17684472 = 17684472 × (80384645)
+ 17684472 × 5 producing 88422360
+ 17684472 × 40 giving us 707378880
+ 17684472 × 600 what gives us 10610683200
+ 17684472 × 4000 yielding 70737888000
+ 17684472 × 80000 producing 1414757760000
+ 17684472 × 300000 resulting in 5305341600000
+ 17684472 × 0000000 resulting in 0
+ 17684472 × 80000000 what gives us 1414757760000000

= 1421560003732440
