No problem, we've got 87120460 and 87290279 to multiply
87120460 × 87290279 = 87290279 × (87120460)
+ 87290279 × 0 giving us 0
+ 87290279 × 60 that is equal 5237416740
+ 87290279 × 400 that is equal 34916111600
+ 87290279 × 0000 producing 0
+ 87290279 × 20000 that is equal 1745805580000
+ 87290279 × 100000 that is equal 8729027900000
+ 87290279 × 7000000 that equals 611031953000000
+ 87290279 × 80000000 giving us 6983222320000000

= 7604769260008340
