Alright, let's work through 9458 times 9391 step by step
9458 × 9391 = 9391 × (9458)
+ 9391 × 8 that equals 75128
+ 9391 × 50 that equals 469550
+ 9391 × 400 yielding 3756400
+ 9391 × 9000 yielding 84519000

= 88820078
