Alright, let's work through 80885144 times 51027564 step by step
80885144 × 51027564 = 51027564 × (80885144)
+ 51027564 × 4 that is equal 204110256
+ 51027564 × 40 giving us 2041102560
+ 51027564 × 100 that equals 5102756400
+ 51027564 × 5000 resulting in 255137820000
+ 51027564 × 80000 giving us 4082205120000
+ 51027564 × 800000 resulting in 40822051200000
+ 51027564 × 0000000 what gives us 0
+ 51027564 × 80000000 what gives us 4082205120000000

= 4127371862109216
