No problem, we've got 4981 and 4203 to multiply
4981 × 4203 = 4203 × (4981)
+ 4203 × 1 resulting in 4203
+ 4203 × 80 resulting in 336240
+ 4203 × 900 resulting in 3782700
+ 4203 × 4000 that is equal 16812000

= 20935143
