Alright, let's work through 81097859 times 69233744 step by step
81097859 × 69233744 = 69233744 × (81097859)
+ 69233744 × 9 resulting in 623103696
+ 69233744 × 50 that results in 3461687200
+ 69233744 × 800 yielding 55386995200
+ 69233744 × 7000 which equals 484636208000
+ 69233744 × 90000 what gives us 6231036960000
+ 69233744 × 000000 that equals 0
+ 69233744 × 1000000 that is equal 69233744000000
+ 69233744 × 80000000 giving us 5538699520000000

= 5614708408954096
