None. 3 digit numbers are not divisible by 19 digit numbers.
There are 151 3-digit numbers that are divisible by 6.
There are 84 such numbers.
The 3 digit numbers under 500 are 100 through 499.
3 digit numbers are lessthan 4 digit numbers
210
450 whole numbers.
100
999-111=888 888 3 digit numbers can be made with numbers between 1 - 9
There are 84 of them.
450
90