Alright, ready to do some subtraction? We're taking 838562566 and subtracting 7851832 from it.

Step 1: We'll start by subtracting the digit 2 and the borrow 0 from 6 in column 1 and get 4.
4 is the first digit of our result.

Step 2: We'll start by subtracting the digit 3 and the borrow 0 from 6 in column 2 and get 3.
3 is the next digit of our result.

Step 3: We'll start by subtracting the digit 8 and the borrow 0 from 5 in column 3 and get -3.
We add -3 to 10 and get 7 as the next digit of the result.

Step 4: We'll start by subtracting the digit 1 and the borrow 1 from 2 in column 4 and get 0.
0 is the next digit of our result.

Step 5: We'll start by subtracting the digit 5 and the borrow 0 from 6 in column 5 and get 1.
1 is the next digit of our result.

Step 6: We'll start by subtracting the digit 8 and the borrow 0 from 5 in column 6 and get -3.
We add -3 to 10 and get 7 as the next digit of the result.

Step 7: We'll start by subtracting the digit 7 and the borrow 1 from 8 in column 7 and get 0.
0 is the next digit of our result.

Step 8: We'll start by subtracting the digit 0 and the borrow 0 from 3 in column 8 and get 3.
3 is the next digit of our result.

Step 9: We'll start by subtracting the digit 0 and the borrow 0 from 8 in column 9 and get 8.
8 is the next digit of our result.

So, 838562566 - 7851832 = 830710734.