Alright, let's work through 31049005 times 81352350 step by step
31049005 × 81352350 = 81352350 × (31049005)
+ 81352350 × 5 giving us 406761750
+ 81352350 × 00 that is equal 0
+ 81352350 × 000 producing 0
+ 81352350 × 9000 that is equal 732171150000
+ 81352350 × 40000 resulting in 3254094000000
+ 81352350 × 000000 producing 0
+ 81352350 × 1000000 that results in 81352350000000
+ 81352350 × 30000000 that results in 2440570500000000

= 2525909521911750
