Alright, let's work through 2458 times 4391 step by step
2458 × 4391 = 4391 × (2458)
+ 4391 × 8 which equals 35128
+ 4391 × 50 producing 219550
+ 4391 × 400 giving us 1756400
+ 4391 × 2000 that equals 8782000

= 10793078
