Answer:
$342 is to be divided into $100 bill, 10 bills, and $1 bills.
We can distribute 342 as :
300 + 40 + 2
300 can be made by 3 $100 bills as

40 can be made by 4 $10 bills as

2 can be made by 2 $1 bills as

So, you can see that you need 3 $100 bills, 4 $10 bills and 2 $1 bills.