No problem, we've got 7854 and 5161 to multiply
7854 × 5161 = 5161 × (7854)
+ 5161 × 4 giving us 20644
+ 5161 × 50 that is equal 258050
+ 5161 × 800 that equals 4128800
+ 5161 × 7000 yielding 36127000

= 40534494
