To convert the fraction 7/8 to a decimal using long division, we start by setting up the division with 7 as the dividend and 8 as the divisor. Since 8 cannot go into 7, we add a decimal point and a zero, making it 70. 8 goes into 70 a total of 8 times (8 x 8 = 64). We subtract 64 from 70, which gives us 6, and then bring down the next digit (5), making it 65. Again, 8 goes into 65 a total of 8 times (8 x 8 = 64). Subtracting 64 from 65 gives us 1. Since there are no more digits to bring down, we stop here. The final result of the division is 0.875.