No problem, we've got 1153 and 7089 to multiply
1153 × 7089 = 7089 × (1153)
+ 7089 × 3 resulting in 21267
+ 7089 × 50 which equals 354450
+ 7089 × 100 giving us 708900
+ 7089 × 1000 what gives us 7089000

= 8173617
