No problem, we've got 81359869 and 86995736 to multiply
81359869 × 86995736 = 86995736 × (81359869)
+ 86995736 × 9 giving us 782961624
+ 86995736 × 60 that results in 5219744160
+ 86995736 × 800 resulting in 69596588800
+ 86995736 × 9000 yielding 782961624000
+ 86995736 × 50000 yielding 4349786800000
+ 86995736 × 300000 giving us 26098720800000
+ 86995736 × 1000000 that is equal 86995736000000
+ 86995736 × 80000000 yielding 6959658880000000

= 7077961684518584
