We're going to solve 4478 multiplied by 9857
4478 × 9857 = 9857 × (4478)
+ 9857 × 8 what gives us 78856
+ 9857 × 70 that equals 689990
+ 9857 × 400 what gives us 3942800
+ 9857 × 4000 that is equal 39428000

= 44139646
