Alright, let's work through 47851429 times 999999 step by step
47851429 × 999999 = 999999 × (47851429)
+ 999999 × 9 that equals 8999991
+ 999999 × 20 yielding 19999980
+ 999999 × 400 yielding 399999600
+ 999999 × 1000 yielding 999999000
+ 999999 × 50000 yielding 49999950000
+ 999999 × 800000 which equals 799999200000
+ 999999 × 7000000 giving us 6999993000000
+ 999999 × 40000000 that equals 39999960000000

= 47851381148571
