840 x 10000
840 x 10000 = 8400000
Example of 840 x 10000 pixels banner dimensions.
790 x 10050 800 x 10040 810 x 10030 820 x 10020 830 x 10010
840 x 9950 840 x 9960 840 x 9970 840 x 9980 840 x 9990
840 x 10050 840 x 10040 840 x 10030 840 x 10020 840 x 10010