No problem, we've got 5309 and 1300 to multiply
5309 × 1300 = 1300 × (5309)
+ 1300 × 9 which equals 11700
+ 1300 × 00 what gives us 0
+ 1300 × 300 what gives us 390000
+ 1300 × 5000 what gives us 6500000

= 6901700
