Alright, let's work through 31809342 times 13653800 step by step
31809342 × 13653800 = 13653800 × (31809342)
+ 13653800 × 2 yielding 27307600
+ 13653800 × 40 that results in 546152000
+ 13653800 × 300 yielding 4096140000
+ 13653800 × 9000 resulting in 122884200000
+ 13653800 × 00000 giving us 0
+ 13653800 × 800000 which equals 10923040000000
+ 13653800 × 1000000 that is equal 13653800000000
+ 13653800 × 30000000 what gives us 409614000000000

= 434318393799600
