No problem, we've got 3680 and 7836 to multiply
3680 × 7836 = 7836 × (3680)
+ 7836 × 0 giving us 0
+ 7836 × 80 that is equal 626880
+ 7836 × 600 what gives us 4701600
+ 7836 × 3000 resulting in 23508000

= 28836480
