No problem, we've got 4520 and 2164 to multiply
4520 × 2164 = 2164 × (4520)
+ 2164 × 0 which equals 0
+ 2164 × 20 giving us 43280
+ 2164 × 500 that results in 1082000
+ 2164 × 4000 resulting in 8656000

= 9781280
