Alright, let's work through 90660380 times 88701871 step by step
90660380 × 88701871 = 88701871 × (90660380)
+ 88701871 × 0 that equals 0
+ 88701871 × 80 that is equal 7096149680
+ 88701871 × 300 that results in 26610561300
+ 88701871 × 0000 that results in 0
+ 88701871 × 60000 what gives us 5322112260000
+ 88701871 × 600000 yielding 53221122600000
+ 88701871 × 0000000 that is equal 0
+ 88701871 × 90000000 that is equal 7983168390000000

= 8041745331570980
