Alright, let's work through 2120 times 7992 step by step
2120 × 7992 = 7992 × (2120)
+ 7992 × 0 resulting in 0
+ 7992 × 20 yielding 159840
+ 7992 × 100 yielding 799200
+ 7992 × 2000 what gives us 15984000

= 16943040
