No problem, we've got 7135 and 4440 to multiply
7135 × 4440 = 4440 × (7135)
+ 4440 × 5 what gives us 22200
+ 4440 × 30 giving us 133200
+ 4440 × 100 resulting in 444000
+ 4440 × 7000 that results in 31080000

= 31679400
