No problem, we've got 1273 and 5359 to multiply
1273 × 5359 = 5359 × (1273)
+ 5359 × 3 what gives us 16077
+ 5359 × 70 resulting in 375130
+ 5359 × 200 resulting in 1071800
+ 5359 × 1000 that results in 5359000

= 6822007
