869441 ÷ 20 
We want to figure out the number of times 869441 can be divided by 20.

Going ahead to step 1:
If we divide 8 by 20, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 20

Moving on to step 2:
20 goes into 86 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 80 away from 86, we end up with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 20

Step 3:
If we divide 69 by 20, we get 3 and a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
Subtract 60 from 69 to get 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 20

Advancing to step 4:
94 divided by 20 is 4 with a remainder of 14.
The next digit of our result is 4. 
Result so far: 434.0
The remainder is 14 after subtracting 80 from 94.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 20

Moving on to step 5:
The number 20 fits into 144 7 times, leaving a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 4347.0
Subtract 140 from 144 to get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 20

Advancing to step 6:
41 divided by 20 is 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 43472.0
If we take 40 away from 41, 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.

Advancing to step 7:
20 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 43472.0
If we take 0 away from 10, we end up 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 goes into 100 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 43472.05
If we take 100 away from 100, 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 9:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 43472.05
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.

Going ahead to step 10:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 43472.05
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.

The quotient of the division is 43472.05, and the remainder is 0.0.