Alright, let's work through 31316732 times 72097152 step by step
31316732 × 72097152 = 72097152 × (31316732)
+ 72097152 × 2 giving us 144194304
+ 72097152 × 30 producing 2162914560
+ 72097152 × 700 what gives us 50468006400
+ 72097152 × 6000 giving us 432582912000
+ 72097152 × 10000 what gives us 720971520000
+ 72097152 × 300000 that equals 21629145600000
+ 72097152 × 1000000 producing 72097152000000
+ 72097152 × 30000000 giving us 2162914560000000

= 2257847187147264
