No problem, we've got 42450482 and 20375673 to multiply
42450482 × 20375673 = 20375673 × (42450482)
+ 20375673 × 2 yielding 40751346
+ 20375673 × 80 resulting in 1630053840
+ 20375673 × 400 giving us 8150269200
+ 20375673 × 0000 that equals 0
+ 20375673 × 50000 yielding 1018783650000
+ 20375673 × 400000 that results in 8150269200000
+ 20375673 × 2000000 producing 40751346000000
+ 20375673 × 40000000 resulting in 815026920000000

= 864957139924386
