No problem, we've got 11979725 and 387827 to multiply
11979725 × 387827 = 387827 × (11979725)
+ 387827 × 5 resulting in 1939135
+ 387827 × 20 giving us 7756540
+ 387827 × 700 what gives us 271478900
+ 387827 × 9000 resulting in 3490443000
+ 387827 × 70000 what gives us 27147890000
+ 387827 × 900000 giving us 349044300000
+ 387827 × 1000000 giving us 387827000000
+ 387827 × 10000000 yielding 3878270000000

= 4646060807575
