No problem, we've got 6916302 and 68144272 to multiply
6916302 × 68144272 = 68144272 × (6916302)
+ 68144272 × 2 what gives us 136288544
+ 68144272 × 00 that is equal 0
+ 68144272 × 300 which equals 20443281600
+ 68144272 × 6000 resulting in 408865632000
+ 68144272 × 10000 giving us 681442720000
+ 68144272 × 900000 resulting in 61329844800000
+ 68144272 × 6000000 producing 408865632000000

= 471306364722144
