Alright, let's work through 8458 times 7992 step by step
8458 × 7992 = 7992 × (8458)
+ 7992 × 8 that is equal 63936
+ 7992 × 50 which equals 399600
+ 7992 × 400 what gives us 3196800
+ 7992 × 8000 that equals 63936000

= 67596336
