No problem, we've got 87406504 and 77994857 to multiply
87406504 × 77994857 = 77994857 × (87406504)
+ 77994857 × 4 that results in 311979428
+ 77994857 × 00 what gives us 0
+ 77994857 × 500 which equals 38997428500
+ 77994857 × 6000 which equals 467969142000
+ 77994857 × 00000 resulting in 0
+ 77994857 × 400000 that results in 31197942800000
+ 77994857 × 7000000 that results in 545963999000000
+ 77994857 × 80000000 that equals 6239588560000000

= 6817257780349928
