No problem, we've got 4167 and 5161 to multiply
4167 × 5161 = 5161 × (4167)
+ 5161 × 7 giving us 36127
+ 5161 × 60 producing 309660
+ 5161 × 100 giving us 516100
+ 5161 × 4000 yielding 20644000

= 21505887
