No problem, we've got 4157 and 3885 to multiply
4157 × 3885 = 3885 × (4157)
+ 3885 × 7 which equals 27195
+ 3885 × 50 that is equal 194250
+ 3885 × 100 that equals 388500
+ 3885 × 4000 that equals 15540000

= 16149945
