Alright, let's work through 99980706 times 4851545 step by step
99980706 × 4851545 = 4851545 × (99980706)
+ 4851545 × 6 yielding 29109270
+ 4851545 × 00 what gives us 0
+ 4851545 × 700 giving us 3396081500
+ 4851545 × 0000 that equals 0
+ 4851545 × 80000 that results in 388123600000
+ 4851545 × 900000 yielding 4366390500000
+ 4851545 × 9000000 which equals 43663905000000
+ 4851545 × 90000000 yielding 436639050000000

= 485060894290770
