No problem, we've got 4707 and 4140 to multiply
4707 × 4140 = 4140 × (4707)
+ 4140 × 7 what gives us 28980
+ 4140 × 00 that results in 0
+ 4140 × 700 giving us 2898000
+ 4140 × 4000 that results in 16560000

= 19486980
