What is the 2007th digit to the right of the decimal point in the decimal expansion of 4/7?
Let 5 be 1, 7 = 2, 1 = 3, 4 = 4, 2 = 5, 8 = 6
The closest we can get to 2007 with 6 is with the number 334 which when multiplied by 6 is 2004. That makes a remainder of 3.
If the 6 mark as we said was 8, 3 more starting from the beginning would leave us with 1.
From here you can see it.
1 is the 2007th digit to the right of the decimal point in the decimal expansion of 4/7.
Answer = 1
I hope this helped!