No problem, we've got 9428 and 2420 to multiply
9428 × 2420 = 2420 × (9428)
+ 2420 × 8 yielding 19360
+ 2420 × 20 giving us 48400
+ 2420 × 400 that is equal 968000
+ 2420 × 9000 that equals 21780000

= 22815760
