Solve Vertical Subtraction: 867 minus 42 Step-by-Step

$\begin{aligned} &867\\ -& \\ &~~42 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

To solve this problem, we will perform vertical subtraction as follows:

• Step 1: Write the numbers vertically and align digits by place value:
  $867$
  $-~~42$
• Step 2: Start subtracting from the units place:
  $7 - 2 = 5$
• Step 3: Move to the tens place:
  $6 - 4 = 2$
• Step 4: Finally, subtract the hundreds place:
  $8 - 0 = 8$ (nothing was borrowed here)

Putting it all together, the result of $867 - 42$ is $825$.

Therefore, the solution to the problem is $825$.