No problem, we've got 2180 and 5800 to multiply
2180 × 5800 = 5800 × (2180)
+ 5800 × 0 that is equal 0
+ 5800 × 80 that results in 464000
+ 5800 × 100 yielding 580000
+ 5800 × 2000 giving us 11600000

= 12644000
