18688630 divided by 450 
We want to divide 18688630 by 450.

Let's proceed to step 1:
450 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 450

Step 2:
If we divide 18 by 450, we get 0 and a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Bring next digit (6) of the dividend behind the 18 and repeat the process: 186 / 450

Step 3:
450 goes into 186 0 times with a remainder of 186.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 186 after subtracting 0 from 186.
Append the next digit (8) from the dividend to 186 and continue with: 1868 / 450

On to step 4:
If we divide 1868 by 450, we get 4 and a remainder of 68.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 1800 from 1868 and we're left with 68.
Fetch the next digit (8) from the dividend, attach it to 68 and continue: 688 / 450

Step 5:
When dividing 688 by 450, we get 1 with a remainder of 238.
Write down 1 as next digit of the result. 
Result so far: 41.0
Deduct 450 from 688 and we're left with 238.
Bring next digit (6) of the dividend behind the 238 and repeat the process: 2386 / 450

Advancing to step 6:
450 can be fit into 2386 5 times, resulting in a remainder of 136.
Write down 5 as next digit of the result. 
Result so far: 415.0
Subtract 2250 from 2386 to get 136.
Grab the next digit (3) from the dividend, add it to 136, then carry on: 1363 / 450

Going ahead to step 7:
450 goes into 1363 3 times with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 4153.0
Deduct 1350 from 1363 and we're left with 13.
Grab the next digit (0) from the dividend, add it to 13, then carry on: 130 / 450

On to step 8:
450 can be fit into 130 0 times, resulting in a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 41530.0
The remainder is 130 after subtracting 0 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 9:
1300 divided by 450 is 2 with a remainder of 400.
Put 2 as the next digit of the answer. 
Result so far: 41530.2
If we subtract 900 from 1300, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 10:
If we divide 4000 by 450, we get 8 and a remainder of 400.
Record the quotient 8 as the next digit in the result. 
Result so far: 41530.28
Subtract 3600 from 4000 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 11:
450 goes into 4000 8 times with a remainder of 400.
Use 8 as the next digit of our solution. 
Result so far: 41530.288
If we take 3600 away from 4000, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 41530.288, with a leftover of 0.04.