40573898 ÷ 450 
Our goal is to divide 40573898 by 450.

Let's proceed to step 1:
The number 450 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 450

Moving on to step 2:
If we divide 40 by 450, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 40, we end up with 40.
Bring next digit (5) of the dividend behind the 40 and repeat the process: 405 / 450

Let's proceed to step 3:
405 divided by 450 is 0 with a remainder of 405.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 405 to get 405.
Grab the next digit (7) from the dividend, add it to 405, then carry on: 4057 / 450

Step 4:
450 goes into 4057 9 times with a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 4050 away from 4057, we end up with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 450

Moving on to step 5:
The number 450 fits into 73 0 times, leaving a remainder of 73.
The next digit of our result is 0. 
Result so far: 90.0
If we take 0 away from 73, we end up with 73.
Include the next digit (8) from the dividend after 73, then repeat: 738 / 450

Moving on to step 6:
When dividing 738 by 450, we get 1 with a remainder of 288.
The next digit of our result is 1. 
Result so far: 901.0
Deduct 450 from 738 and we're left with 288.
Fetch the next digit (9) from the dividend, attach it to 288 and continue: 2889 / 450

Advancing to step 7:
2889 divided by 450 is 6 with a remainder of 189.
Write down 6 as next digit of the result. 
Result so far: 9016.0
Deduct 2700 from 2889 and we're left with 189.
Include the next digit (8) from the dividend after 189, then repeat: 1898 / 450

On to step 8:
1898 divided by 450 is 4 with a remainder of 98.
The next digit of our result is 4. 
Result so far: 90164.0
If we subtract 1800 from 1898, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Moving on to step 9:
If we divide 980 by 450, we get 2 and a remainder of 80.
The next digit of our result is 2. 
Result so far: 90164.2
Deduct 900 from 980 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 10:
When dividing 800 by 450, we get 1 with a remainder of 350.
Write down 1 as next digit of the result. 
Result so far: 90164.21
Subtracting 450 from 800 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Going ahead to step 11:
When dividing 3500 by 450, we get 7 with a remainder of 350.
Write down 7 as next digit of the result. 
Result so far: 90164.217
Deduct 3150 from 3500 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 12:
450 goes into 3500 7 times with a remainder of 350.
The number 7 becomes the next digit in our result. 
Result so far: 90164.2177
The remainder is 350 after subtracting 3150 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

The final outcome is 90164.2177, with a leftover of 0.0035.