14(20x) > 2(174.38) note that the greater than should really be a greater than or equal to symbol, I just don't have it on my keyboard.
Divide the range by the number of marks: [9682192 - 1010020] / 10 = 867.217
So a reasonable scales is millions and the marks will be, 1 million, 2 million, 3 million, 4 million, ... until 10 million