101801 ÷ 20 
Let's see how many times 20 fits into 101801.

Advancing to step 1:
The number 20 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 20

Let's proceed to step 2:
If we divide 10 by 20, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Take the next digit (1) from the dividend and append it to 10, then repeat: 101 / 20

On to step 3:
101 divided by 20 is 5 with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 1 after subtracting 100 from 101.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 20

Let's proceed to step 4:
18 divided by 20 is 0 with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 50.0
Subtract 0 from 18 to get 18.
Take the next digit (0) from the dividend and append it to 18, then repeat: 180 / 20

On to step 5:
20 can be fit into 180 9 times, resulting in a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 509.0
Subtract 180 from 180 to get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 20

On to step 6:
When dividing 1 by 20, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 5090.0
If we take 0 away from 1, 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:
When dividing 10 by 20, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 5090.0
The remainder is 10 after subtracting 0 from 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 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 5090.05
Deduct 100 from 100 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.

Moving on to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 5090.05
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.

Moving on to step 10:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 5090.05
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.

The final outcome is 5090.05, with a leftover of 0.0.