Alright, let's work through 2118 times 7858 step by step
2118 × 7858 = 7858 × (2118)
+ 7858 × 8 giving us 62864
+ 7858 × 10 giving us 78580
+ 7858 × 100 producing 785800
+ 7858 × 2000 that results in 15716000

= 16643244
