No problem, we've got 83990280 and 42005006 to multiply
83990280 × 42005006 = 42005006 × (83990280)
+ 42005006 × 0 that equals 0
+ 42005006 × 80 that equals 3360400480
+ 42005006 × 200 what gives us 8401001200
+ 42005006 × 0000 that results in 0
+ 42005006 × 90000 producing 3780450540000
+ 42005006 × 900000 that results in 37804505400000
+ 42005006 × 3000000 resulting in 126015018000000
+ 42005006 × 80000000 producing 3360400480000000

= 3528012215341680
