No problem, we've got 87147659 and 79673707 to multiply
87147659 × 79673707 = 79673707 × (87147659)
+ 79673707 × 9 that results in 717063363
+ 79673707 × 50 what gives us 3983685350
+ 79673707 × 600 giving us 47804224200
+ 79673707 × 7000 that results in 557715949000
+ 79673707 × 40000 that equals 3186948280000
+ 79673707 × 100000 what gives us 7967370700000
+ 79673707 × 7000000 which equals 557715949000000
+ 79673707 × 80000000 that equals 6373896560000000

= 6943377048901913
