Alright, let's work through 90679057 times 79204335 step by step
90679057 × 79204335 = 79204335 × (90679057)
+ 79204335 × 7 yielding 554430345
+ 79204335 × 50 producing 3960216750
+ 79204335 × 000 producing 0
+ 79204335 × 9000 producing 712839015000
+ 79204335 × 70000 what gives us 5544303450000
+ 79204335 × 600000 yielding 47522601000000
+ 79204335 × 0000000 yielding 0
+ 79204335 × 90000000 what gives us 7128390150000000

= 7182174408112095
