Alright, let's work through 8030305 times 68237070 step by step
8030305 × 68237070 = 68237070 × (8030305)
+ 68237070 × 5 what gives us 341185350
+ 68237070 × 00 which equals 0
+ 68237070 × 300 producing 20471121000
+ 68237070 × 0000 that is equal 0
+ 68237070 × 30000 which equals 2047112100000
+ 68237070 × 000000 producing 0
+ 68237070 × 8000000 producing 545896560000000

= 547964484406350
