No problem, we've got 85107307 and 64088389 to multiply
85107307 × 64088389 = 64088389 × (85107307)
+ 64088389 × 7 resulting in 448618723
+ 64088389 × 00 that is equal 0
+ 64088389 × 300 producing 19226516700
+ 64088389 × 7000 yielding 448618723000
+ 64088389 × 00000 that equals 0
+ 64088389 × 100000 which equals 6408838900000
+ 64088389 × 5000000 that results in 320441945000000
+ 64088389 × 80000000 that results in 5127071120000000

= 5454390197758423
