413669 ÷ 20 
We want to figure out the number of times 413669 can be divided by 20.

On to step 1:
20 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 20

Advancing to step 2:
If we divide 41 by 20, we get 2 and a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 40 from 41 to get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 20

Let's proceed to step 3:
The number 20 fits into 13 0 times, leaving a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtract 0 from 13 to get 13.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 20

Let's proceed to step 4:
If we divide 136 by 20, we get 6 and a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 206.0
The remainder is 16 after subtracting 120 from 136.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 20

Going ahead to step 5:
20 goes into 166 8 times with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 2068.0
If we take 160 away from 166, we end up with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 20

Moving on to step 6:
When dividing 69 by 20, we get 3 with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 20683.0
Subtract 60 from 69 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
90 divided by 20 is 4 with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 20683.4
Deduct 80 from 90 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 20683.45
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 20683.45
Deduct 0 from 0 and we're left 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 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 20683.45
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.

After the division, we end up with 20683.45 and a remainder of 0.0.