No problem, we've got 80576741 and 65391674 to multiply
80576741 × 65391674 = 65391674 × (80576741)
+ 65391674 × 1 which equals 65391674
+ 65391674 × 40 that is equal 2615666960
+ 65391674 × 700 which equals 45774171800
+ 65391674 × 6000 that equals 392350044000
+ 65391674 × 70000 yielding 4577417180000
+ 65391674 × 500000 resulting in 32695837000000
+ 65391674 × 0000000 that is equal 0
+ 65391674 × 80000000 giving us 5231333920000000

= 5269047979454434
