19720209 ÷ 938 
Let's see how many times 938 fits into 19720209.

Going ahead to step 1:
The number 938 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 938

On to step 2:
The number 938 fits into 19 0 times, leaving a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Take the next digit (7) from the dividend and append it to 19, then repeat: 197 / 938

Step 3:
If we divide 197 by 938, we get 0 and a remainder of 197.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 197 after subtracting 0 from 197.
Include the next digit (2) from the dividend after 197, then repeat: 1972 / 938

On to step 4:
938 can be fit into 1972 2 times, resulting in a remainder of 96.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 1876 from 1972, we get 96.
Bring next digit (0) of the dividend behind the 96 and repeat the process: 960 / 938

Advancing to step 5:
938 can be fit into 960 1 times, resulting in a remainder of 22.
The next digit of our result is 1. 
Result so far: 21.0
Subtract 938 from 960 to get 22.
Grab the next digit (2) from the dividend, add it to 22, then carry on: 222 / 938

Advancing to step 6:
938 can be fit into 222 0 times, resulting in a remainder of 222.
Put 0 as the next digit of the answer. 
Result so far: 210.0
Subtract 0 from 222 to get 222.
Bring next digit (0) of the dividend behind the 222 and repeat the process: 2220 / 938

Step 7:
938 goes into 2220 2 times with a remainder of 344.
Use 2 as the next digit of our solution. 
Result so far: 2102.0
Deduct 1876 from 2220 and we're left with 344.
Grab the next digit (9) from the dividend, add it to 344, then carry on: 3449 / 938

On to step 8:
The number 938 fits into 3449 3 times, leaving a remainder of 635.
The number 3 becomes the next digit in our result. 
Result so far: 21023.0
The remainder is 635 after subtracting 2814 from 3449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Advancing to step 9:
938 can be fit into 6350 6 times, resulting in a remainder of 722.
The number 6 becomes the next digit in our result. 
Result so far: 21023.6
The remainder is 722 after subtracting 5628 from 6350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7220, and continue the process.

Moving on to step 10:
938 can be fit into 7220 7 times, resulting in a remainder of 654.
Record the quotient 7 as the next digit in the result. 
Result so far: 21023.67
Subtracting 6566 from 7220 leaves us with 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

On to step 11:
When dividing 6540 by 938, we get 6 with a remainder of 912.
Use 6 as the next digit of our solution. 
Result so far: 21023.676
Deduct 5628 from 6540 and we're left with 912.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9120, and continue the process.

On to step 12:
938 goes into 9120 9 times with a remainder of 678.
The next digit of our result is 9. 
Result so far: 21023.6769
If we take 8442 away from 9120, we end up with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Step 13:
If we divide 6780 by 938, we get 7 and a remainder of 214.
Use 7 as the next digit of our solution. 
Result so far: 21023.67697
If we take 6566 away from 6780, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Step 14:
2140 divided by 938 is 2 with a remainder of 264.
Write down 2 as next digit of the result. 
Result so far: 21023.676972
If we subtract 1876 from 2140, we get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Going ahead to step 15:
The number 938 fits into 2640 2 times, leaving a remainder of 764.
The number 2 becomes the next digit in our result. 
Result so far: 21023.6769722
Subtract 1876 from 2640 to get 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

After the division, we end up with 21023.6769722 and a remainder of 7.64e-06.