No problem, we've got 6720 and 1546 to multiply
6720 × 1546 = 1546 × (6720)
+ 1546 × 0 that equals 0
+ 1546 × 20 what gives us 30920
+ 1546 × 700 giving us 1082200
+ 1546 × 6000 resulting in 9276000

= 10389120
