Alright, let's work through 42845079 times 90814803 step by step
42845079 × 90814803 = 90814803 × (42845079)
+ 90814803 × 9 yielding 817333227
+ 90814803 × 70 yielding 6357036210
+ 90814803 × 000 that equals 0
+ 90814803 × 5000 that equals 454074015000
+ 90814803 × 40000 giving us 3632592120000
+ 90814803 × 800000 giving us 72651842400000
+ 90814803 × 2000000 giving us 181629606000000
+ 90814803 × 40000000 producing 3632592120000000

= 3890967408904437
