Alright, let's work through 71320889 times 5456945 step by step
71320889 × 5456945 = 5456945 × (71320889)
+ 5456945 × 9 that equals 49112505
+ 5456945 × 80 what gives us 436555600
+ 5456945 × 800 giving us 4365556000
+ 5456945 × 0000 what gives us 0
+ 5456945 × 20000 resulting in 109138900000
+ 5456945 × 300000 giving us 1637083500000
+ 5456945 × 1000000 giving us 5456945000000
+ 5456945 × 70000000 what gives us 381986150000000

= 389194168624105
