No problem, we've got 48957157 and 72071513 to multiply
48957157 × 72071513 = 72071513 × (48957157)
+ 72071513 × 7 what gives us 504500591
+ 72071513 × 50 what gives us 3603575650
+ 72071513 × 100 that equals 7207151300
+ 72071513 × 7000 yielding 504500591000
+ 72071513 × 50000 giving us 3603575650000
+ 72071513 × 900000 yielding 64864361700000
+ 72071513 × 8000000 resulting in 576572104000000
+ 72071513 × 40000000 that results in 2882860520000000

= 3528416377168541
