No problem, we've got 3914 and 2520 to multiply
3914 × 2520 = 2520 × (3914)
+ 2520 × 4 that is equal 10080
+ 2520 × 10 that is equal 25200
+ 2520 × 900 which equals 2268000
+ 2520 × 3000 giving us 7560000

= 9863280
