No problem, we've got 1281 and 4230 to multiply
1281 × 4230 = 4230 × (1281)
+ 4230 × 1 what gives us 4230
+ 4230 × 80 yielding 338400
+ 4230 × 200 that results in 846000
+ 4230 × 1000 resulting in 4230000

= 5418630
