Alright, let's work through 99688801 times 42773545 step by step
99688801 × 42773545 = 42773545 × (99688801)
+ 42773545 × 1 which equals 42773545
+ 42773545 × 00 that results in 0
+ 42773545 × 800 yielding 34218836000
+ 42773545 × 8000 resulting in 342188360000
+ 42773545 × 80000 which equals 3421883600000
+ 42773545 × 600000 that equals 25664127000000
+ 42773545 × 9000000 what gives us 384961905000000
+ 42773545 × 90000000 producing 3849619050000000

= 4264043415569545
