Alright, let's work through 8386 times 2120 step by step
8386 × 2120 = 2120 × (8386)
+ 2120 × 6 that results in 12720
+ 2120 × 80 giving us 169600
+ 2120 × 300 giving us 636000
+ 2120 × 8000 that results in 16960000

= 17778320
