No problem, we've got 2998 and 7858 to multiply
2998 × 7858 = 7858 × (2998)
+ 7858 × 8 yielding 62864
+ 7858 × 90 what gives us 707220
+ 7858 × 900 that results in 7072200
+ 7858 × 2000 giving us 15716000

= 23558284
