No problem, we've got 3827 and 5360 to multiply
3827 × 5360 = 5360 × (3827)
+ 5360 × 7 giving us 37520
+ 5360 × 20 that is equal 107200
+ 5360 × 800 giving us 4288000
+ 5360 × 3000 that results in 16080000

= 20512720
