350149 ÷ 20 
We want to divide 350149 by 20.

Going ahead to step 1:
If we divide 3 by 20, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 20

Let's proceed to step 2:
When dividing 35 by 20, we get 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 20 from 35 leaves us with 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 20

Moving on to step 3:
The number 20 fits into 150 7 times, leaving a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtract 140 from 150 to get 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 20

On to step 4:
If we divide 101 by 20, we get 5 and a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 175.0
Subtract 100 from 101 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 20

Step 5:
20 can be fit into 14 0 times, resulting in a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 1750.0
If we take 0 away from 14, we end up with 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 20

Moving on to step 6:
When dividing 149 by 20, we get 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 17507.0
If we take 140 away from 149, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
The number 20 fits into 90 4 times, leaving a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 17507.4
The remainder is 10 after subtracting 80 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 17507.45
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.

Advancing to step 9:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 17507.45
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.

Moving on to step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 17507.45
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.

Our division results in 17507.45 with a remaining 0.0.