No problem, we've got 87021875 and 77938530 to multiply
87021875 × 77938530 = 77938530 × (87021875)
+ 77938530 × 5 that equals 389692650
+ 77938530 × 70 what gives us 5455697100
+ 77938530 × 800 giving us 62350824000
+ 77938530 × 1000 yielding 77938530000
+ 77938530 × 20000 what gives us 1558770600000
+ 77938530 × 000000 which equals 0
+ 77938530 × 7000000 that results in 545569710000000
+ 77938530 × 80000000 what gives us 6235082400000000

= 6782357015343750
