No problem, we've got 84193040 and 42248381 to multiply
84193040 × 42248381 = 42248381 × (84193040)
+ 42248381 × 0 giving us 0
+ 42248381 × 40 which equals 1689935240
+ 42248381 × 000 giving us 0
+ 42248381 × 3000 what gives us 126745143000
+ 42248381 × 90000 which equals 3802354290000
+ 42248381 × 100000 producing 4224838100000
+ 42248381 × 4000000 what gives us 168993524000000
+ 42248381 × 80000000 producing 3379870480000000

= 3557019631468240
