Alright, let's work through 2180 times 9881 step by step
2180 × 9881 = 9881 × (2180)
+ 9881 × 0 yielding 0
+ 9881 × 80 yielding 790480
+ 9881 × 100 that is equal 988100
+ 9881 × 2000 what gives us 19762000

= 21540580
