No problem, we've got 1091 and 4040 to multiply
1091 × 4040 = 4040 × (1091)
+ 4040 × 1 that is equal 4040
+ 4040 × 90 resulting in 363600
+ 4040 × 000 that is equal 0
+ 4040 × 1000 which equals 4040000

= 4407640
