437317 divided by 20 
We want to divide 437317 by 20.

Step 1:
The number 20 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 20

Going ahead to step 2:
20 can be fit into 43 2 times, resulting in a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 40 away from 43, we end up with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 20

Step 3:
20 can be fit into 37 1 times, resulting in a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we take 20 away from 37, we end up with 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 20

Going ahead to step 4:
When dividing 173 by 20, we get 8 with a remainder of 13.
Put 8 as the next digit of the answer. 
Result so far: 218.0
Deduct 160 from 173 and we're left with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 20

Let's proceed to step 5:
If we divide 131 by 20, we get 6 and a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 2186.0
The remainder is 11 after subtracting 120 from 131.
Grab the next digit (7) from the dividend, add it to 11, then carry on: 117 / 20

On to step 6:
If we divide 117 by 20, we get 5 and a remainder of 17.
The next digit of our result is 5. 
Result so far: 21865.0
If we subtract 100 from 117, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
When dividing 170 by 20, we get 8 with a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 21865.8
Subtract 160 from 170 to 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.

Let's proceed to step 8:
100 divided by 20 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 21865.85
If we subtract 100 from 100, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
0 divided by 20 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 21865.85
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 21865.85
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 21865.85, with a leftover of 0.0.