Alright, let's work through 1139 times 8558 step by step
1139 × 8558 = 8558 × (1139)
+ 8558 × 9 resulting in 77022
+ 8558 × 30 producing 256740
+ 8558 × 100 that equals 855800
+ 8558 × 1000 giving us 8558000

= 9747562
