We're dividing 437066 by 20 
We want to figure out the number of times 437066 can be divided by 20.

Advancing to step 1:
The number 20 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 20

Advancing to step 2:
20 can be fit into 43 2 times, resulting in a remainder of 3.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 40 from 43 to get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 20

Advancing to step 3:
If we divide 37 by 20, we get 1 and a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we subtract 20 from 37, we get 17.
Take the next digit (0) from the dividend and append it to 17, then repeat: 170 / 20

Step 4:
170 divided by 20 is 8 with a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 218.0
Subtract 160 from 170 to get 10.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 20

Let's proceed to step 5:
When dividing 106 by 20, we get 5 with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 2185.0
Subtracting 100 from 106 leaves us with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 20

Step 6:
20 can be fit into 66 3 times, resulting in a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 21853.0
Subtracting 60 from 66 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
The number 20 fits into 60 3 times, leaving a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 21853.3
If we take 60 away from 60, 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.

On to step 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 21853.3
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.

Going ahead to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21853.3
Subtracting 0 from 0 leaves us 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.

In conclusion, the division gives 21853.3 with a balance of 0.0.