19911437 divided by 20 
We want to divide 19911437 by 20.

Let's proceed to step 1:
When dividing 1 by 20, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 20

Step 2:
20 goes into 19 0 times with a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 20

Moving on to step 3:
20 goes into 199 9 times with a remainder of 19.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 180 from 199, we get 19.
Take the next digit (1) from the dividend and append it to 19, then repeat: 191 / 20

Moving on to step 4:
20 goes into 191 9 times with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
The remainder is 11 after subtracting 180 from 191.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 20

Moving on to step 5:
20 can be fit into 111 5 times, resulting in a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 995.0
The remainder is 11 after subtracting 100 from 111.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 20

Moving on to step 6:
114 divided by 20 is 5 with a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 9955.0
If we subtract 100 from 114, we get 14.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 20

Moving on to step 7:
If we divide 143 by 20, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 99557.0
If we subtract 140 from 143, we get 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 20

Moving on to step 8:
37 divided by 20 is 1 with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 995571.0
Subtract 20 from 37 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 9:
170 divided by 20 is 8 with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 995571.8
If we subtract 160 from 170, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
The number 20 fits into 100 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 995571.85
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.

On to step 11:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 995571.85
If we subtract 0 from 0, we 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.

Let's proceed to step 12:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 995571.85
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.

In conclusion, the division gives 995571.85 with a balance of 0.0.