No problem, we've got 71321757 and 65327961 to multiply
71321757 × 65327961 = 65327961 × (71321757)
+ 65327961 × 7 that equals 457295727
+ 65327961 × 50 resulting in 3266398050
+ 65327961 × 700 what gives us 45729572700
+ 65327961 × 1000 giving us 65327961000
+ 65327961 × 20000 producing 1306559220000
+ 65327961 × 300000 which equals 19598388300000
+ 65327961 × 1000000 producing 65327961000000
+ 65327961 × 70000000 that is equal 4572957270000000

= 4659304959747477
