No problem, we've got 89987485 and 72526992 to multiply
89987485 × 72526992 = 72526992 × (89987485)
+ 72526992 × 5 that results in 362634960
+ 72526992 × 80 what gives us 5802159360
+ 72526992 × 400 that results in 29010796800
+ 72526992 × 7000 that equals 507688944000
+ 72526992 × 80000 which equals 5802159360000
+ 72526992 × 900000 producing 65274292800000
+ 72526992 × 9000000 producing 652742928000000
+ 72526992 × 80000000 which equals 5802159360000000

= 6526521604695120
