Alright, ready to do some subtraction? We're taking 800433193 and subtracting 297574379 from it.

Step 1: We'll start by subtracting the digit 9 and the borrow 0 from 3 in column 1 and get -6.
We add -6 to 10 and get 4 as the first digit of the result.

Step 2: We'll start by subtracting the digit 7 and the borrow 1 from 9 in column 2 and get 1.
1 is the next digit of our result.

Step 3: We'll start by subtracting the digit 3 and the borrow 0 from 1 in column 3 and get -2.
We add -2 to 10 and get 8 as the next digit of the result.

Step 4: We'll start by subtracting the digit 4 and the borrow 1 from 3 in column 4 and get -2.
We add -2 to 10 and get 8 as the next digit of the result.

Step 5: We'll start by subtracting the digit 7 and the borrow 1 from 3 in column 5 and get -5.
We add -5 to 10 and get 5 as the next digit of the result.

Step 6: We'll start by subtracting the digit 5 and the borrow 1 from 4 in column 6 and get -2.
We add -2 to 10 and get 8 as the next digit of the result.

Step 7: We'll start by subtracting the digit 7 and the borrow 1 from 0 in column 7 and get -8.
We add -8 to 10 and get 2 as the next digit of the result.

Step 8: We'll start by subtracting the digit 9 and the borrow 1 from 0 in column 8 and get -10.
We add -10 to 10 and get 0 as the next digit of the result.

Step 9: We'll start by subtracting the digit 2 and the borrow 1 from 8 in column 9 and get 5.
5 is the next digit of our result.

So, 800433193 - 297574379 = 502858814.