No problem, we've got 83780228 and 42047474 to multiply
83780228 × 42047474 = 42047474 × (83780228)
+ 42047474 × 8 what gives us 336379792
+ 42047474 × 20 what gives us 840949480
+ 42047474 × 200 that is equal 8409494800
+ 42047474 × 0000 resulting in 0
+ 42047474 × 80000 that equals 3363797920000
+ 42047474 × 700000 what gives us 29433231800000
+ 42047474 × 3000000 that equals 126142422000000
+ 42047474 × 80000000 that results in 3363797920000000

= 3522746958544072
