Alright, let's work through 20428240 times 45973868 step by step
20428240 × 45973868 = 45973868 × (20428240)
+ 45973868 × 0 that equals 0
+ 45973868 × 40 yielding 1838954720
+ 45973868 × 200 that equals 9194773600
+ 45973868 × 8000 giving us 367790944000
+ 45973868 × 20000 resulting in 919477360000
+ 45973868 × 400000 yielding 18389547200000
+ 45973868 × 0000000 that equals 0
+ 45973868 × 20000000 what gives us 919477360000000

= 939165209232320
