Alright, let's work through 4124 times 2191 step by step
4124 × 2191 = 2191 × (4124)
+ 2191 × 4 that equals 8764
+ 2191 × 20 giving us 43820
+ 2191 × 100 which equals 219100
+ 2191 × 4000 that equals 8764000

= 9035684
