No problem, we've got 87064240 and 99769991 to multiply
87064240 × 99769991 = 99769991 × (87064240)
+ 99769991 × 0 yielding 0
+ 99769991 × 40 that equals 3990799640
+ 99769991 × 200 giving us 19953998200
+ 99769991 × 4000 that equals 399079964000
+ 99769991 × 60000 what gives us 5986199460000
+ 99769991 × 000000 that is equal 0
+ 99769991 × 7000000 giving us 698389937000000
+ 99769991 × 80000000 producing 7981599280000000

= 8686398441221840
