No problem, we've got 4156 and 1877 to multiply
4156 × 1877 = 1877 × (4156)
+ 1877 × 6 that equals 11262
+ 1877 × 50 resulting in 93850
+ 1877 × 100 giving us 187700
+ 1877 × 4000 producing 7508000

= 7800812
