No problem, we've got 87079764 and 89397869 to multiply
87079764 × 89397869 = 89397869 × (87079764)
+ 89397869 × 4 that results in 357591476
+ 89397869 × 60 which equals 5363872140
+ 89397869 × 700 that results in 62578508300
+ 89397869 × 9000 giving us 804580821000
+ 89397869 × 70000 what gives us 6257850830000
+ 89397869 × 000000 that is equal 0
+ 89397869 × 7000000 that is equal 625785083000000
+ 89397869 × 80000000 that is equal 7151829520000000

= 7784745334622916
