Let's calculate 1388 x 9798
1388 × 9798 = 9798 × (1388)
+ 9798 × 8 what gives us 78384
+ 9798 × 80 that results in 783840
+ 9798 × 300 that equals 2939400
+ 9798 × 1000 resulting in 9798000

= 13599624
