No problem, we've got 71654970 and 72349991 to multiply
71654970 × 72349991 = 72349991 × (71654970)
+ 72349991 × 0 what gives us 0
+ 72349991 × 70 resulting in 5064499370
+ 72349991 × 900 that is equal 65114991900
+ 72349991 × 4000 which equals 289399964000
+ 72349991 × 50000 that results in 3617499550000
+ 72349991 × 600000 resulting in 43409994600000
+ 72349991 × 1000000 giving us 72349991000000
+ 72349991 × 70000000 what gives us 5064499370000000

= 5184236434605270
