Alright, let's work through 81028744 times 87869882 step by step
81028744 × 87869882 = 87869882 × (81028744)
+ 87869882 × 4 that equals 351479528
+ 87869882 × 40 yielding 3514795280
+ 87869882 × 700 which equals 61508917400
+ 87869882 × 8000 what gives us 702959056000
+ 87869882 × 20000 resulting in 1757397640000
+ 87869882 × 000000 which equals 0
+ 87869882 × 1000000 that equals 87869882000000
+ 87869882 × 80000000 that is equal 7029590560000000

= 7119986173888208
