We're going to solve 1038 multiplied by 6404
1038 × 6404 = 6404 × (1038)
+ 6404 × 8 giving us 51232
+ 6404 × 30 that equals 192120
+ 6404 × 000 which equals 0
+ 6404 × 1000 giving us 6404000

= 6647352
