No problem, we've got 71391272 and 43927297 to multiply
71391272 × 43927297 = 43927297 × (71391272)
+ 43927297 × 2 that equals 87854594
+ 43927297 × 70 that equals 3074910790
+ 43927297 × 200 what gives us 8785459400
+ 43927297 × 1000 which equals 43927297000
+ 43927297 × 90000 which equals 3953456730000
+ 43927297 × 300000 resulting in 13178189100000
+ 43927297 × 1000000 which equals 43927297000000
+ 43927297 × 70000000 that equals 3074910790000000

= 3136025608351784
