No problem, we've got 2494 and 8420 to multiply
2494 × 8420 = 8420 × (2494)
+ 8420 × 4 that is equal 33680
+ 8420 × 90 that results in 757800
+ 8420 × 400 yielding 3368000
+ 8420 × 2000 which equals 16840000

= 20999480
