450620 ÷ 31 
Our goal is to divide 450620 by 31.

Moving on to step 1:
The number 31 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 31

Step 2:
31 goes into 45 1 times with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 14 after subtracting 31 from 45.
Append the next digit (0) from the dividend to 14 and continue with: 140 / 31

On to step 3:
If we divide 140 by 31, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtracting 124 from 140 leaves us with 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 31

Advancing to step 4:
31 can be fit into 166 5 times, resulting in a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 145.0
The remainder is 11 after subtracting 155 from 166.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 31

Let's proceed to step 5:
When dividing 112 by 31, we get 3 with a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 1453.0
If we subtract 93 from 112, we get 19.
Fetch the next digit (0) from the dividend, attach it to 19 and continue: 190 / 31

Advancing to step 6:
The number 31 fits into 190 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 14536.0
Deduct 186 from 190 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
When dividing 40 by 31, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 14536.1
If we take 31 away from 40, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 8:
When dividing 90 by 31, we get 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 14536.12
Subtract 62 from 90 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 9:
31 goes into 280 9 times with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 14536.129
If we take 279 away from 280, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 10:
31 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 14536.129
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 11:
If we divide 100 by 31, we get 3 and a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 14536.12903
Subtracting 93 from 100 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 12:
31 goes into 70 2 times with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 14536.129032
Subtract 62 from 70 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 13:
31 can be fit into 80 2 times, resulting in a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 14536.1290322
Subtracting 62 from 80 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 14536.1290322 with a remainder of 1.8e-07.