Alright, let's work through 8721 times 9858 step by step
8721 × 9858 = 9858 × (8721)
+ 9858 × 1 that results in 9858
+ 9858 × 20 yielding 197160
+ 9858 × 700 that equals 6900600
+ 9858 × 8000 that results in 78864000

= 85971618
