No problem, we've got 87488990 and 80121314 to multiply
87488990 × 80121314 = 80121314 × (87488990)
+ 80121314 × 0 what gives us 0
+ 80121314 × 90 which equals 7210918260
+ 80121314 × 900 yielding 72109182600
+ 80121314 × 8000 what gives us 640970512000
+ 80121314 × 80000 that is equal 6409705120000
+ 80121314 × 400000 producing 32048525600000
+ 80121314 × 7000000 yielding 560849198000000
+ 80121314 × 80000000 that equals 6409705120000000

= 7009732839332860
