Let's calculate 80023377 x 51416362
80023377 × 51416362 = 51416362 × (80023377)
+ 51416362 × 7 which equals 359914534
+ 51416362 × 70 that is equal 3599145340
+ 51416362 × 300 resulting in 15424908600
+ 51416362 × 3000 producing 154249086000
+ 51416362 × 20000 that equals 1028327240000
+ 51416362 × 000000 giving us 0
+ 51416362 × 0000000 what gives us 0
+ 51416362 × 80000000 resulting in 4113308960000000

= 4114510920294474
