Alright, let's work through 30428431 times 81462394 step by step
30428431 × 81462394 = 81462394 × (30428431)
+ 81462394 × 1 that equals 81462394
+ 81462394 × 30 giving us 2443871820
+ 81462394 × 400 which equals 32584957600
+ 81462394 × 8000 that equals 651699152000
+ 81462394 × 20000 producing 1629247880000
+ 81462394 × 400000 yielding 32584957600000
+ 81462394 × 0000000 what gives us 0
+ 81462394 × 30000000 yielding 2443871820000000

= 2478772834923814
