No problem, we've got 1415 and 5397 to multiply
1415 × 5397 = 5397 × (1415)
+ 5397 × 5 what gives us 26985
+ 5397 × 10 what gives us 53970
+ 5397 × 400 that equals 2158800
+ 5397 × 1000 that is equal 5397000

= 7636755
