Alright, let's work through 4091 times 6171 step by step
4091 × 6171 = 6171 × (4091)
+ 6171 × 1 producing 6171
+ 6171 × 90 producing 555390
+ 6171 × 000 that equals 0
+ 6171 × 4000 giving us 24684000

= 25245561
