379958 ÷ 20 
Let's see how many times 20 fits into 379958.

Going ahead to step 1:
3 divided by 20 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 20

Let's proceed to step 2:
37 divided by 20 is 1 with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 20 from 37, we get 17.
Append the next digit (9) from the dividend to 17 and continue with: 179 / 20

On to step 3:
20 goes into 179 8 times with a remainder of 19.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtract 160 from 179 to get 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 20

Advancing to step 4:
If we divide 199 by 20, we get 9 and a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 189.0
If we subtract 180 from 199, we get 19.
Bring next digit (5) of the dividend behind the 19 and repeat the process: 195 / 20

On to step 5:
20 goes into 195 9 times with a remainder of 15.
The next digit of our result is 9. 
Result so far: 1899.0
The remainder is 15 after subtracting 180 from 195.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 20

Going ahead to step 6:
When dividing 158 by 20, we get 7 with a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 18997.0
The remainder is 18 after subtracting 140 from 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
If we divide 180 by 20, we get 9 and a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 18997.9
Subtract 180 from 180 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.

Step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 18997.9
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.

Advancing to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 18997.9
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 result is 18997.9 with a remainder of 0.0.