No problem, we've got 1515 and 5370 to multiply
1515 × 5370 = 5370 × (1515)
+ 5370 × 5 which equals 26850
+ 5370 × 10 what gives us 53700
+ 5370 × 500 that is equal 2685000
+ 5370 × 1000 that equals 5370000

= 8135550
