No problem, we've got 9139 and 9905 to multiply
9139 × 9905 = 9905 × (9139)
+ 9905 × 9 giving us 89145
+ 9905 × 30 that results in 297150
+ 9905 × 100 that results in 990500
+ 9905 × 9000 what gives us 89145000

= 90521795
