Alright, let's work through 31220309 times 29154482 step by step
31220309 × 29154482 = 29154482 × (31220309)
+ 29154482 × 9 that equals 262390338
+ 29154482 × 00 that equals 0
+ 29154482 × 300 which equals 8746344600
+ 29154482 × 0000 which equals 0
+ 29154482 × 20000 yielding 583089640000
+ 29154482 × 200000 yielding 5830896400000
+ 29154482 × 1000000 producing 29154482000000
+ 29154482 × 30000000 what gives us 874634460000000

= 910211936774938
