No problem, we've got 9109 and 7109 to multiply
9109 × 7109 = 7109 × (9109)
+ 7109 × 9 that results in 63981
+ 7109 × 00 that is equal 0
+ 7109 × 100 yielding 710900
+ 7109 × 9000 which equals 63981000

= 64755881
