Alright, let's work through 6158 times 8917 step by step
6158 × 8917 = 8917 × (6158)
+ 8917 × 8 producing 71336
+ 8917 × 50 that results in 445850
+ 8917 × 100 producing 891700
+ 8917 × 6000 giving us 53502000

= 54910886
