Alright, let's work through 3557 times 4478 step by step
3557 × 4478 = 4478 × (3557)
+ 4478 × 7 which equals 31346
+ 4478 × 50 what gives us 223900
+ 4478 × 500 resulting in 2239000
+ 4478 × 3000 giving us 13434000

= 15928246
