Let's divide 638237 by 19
We're looking to find how many times 19 goes into 638237.

On to step 1:
19 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 19

Going ahead to step 2:
The number 19 fits into 63 3 times, leaving a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 57 from 63 leaves us with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 19

Step 3:
The number 19 fits into 68 3 times, leaving a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
If we subtract 57 from 68, we get 11.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 19

Advancing to step 4:
112 divided by 19 is 5 with a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 335.0
Deduct 95 from 112 and we're left with 17.
Bring next digit (3) of the dividend behind the 17 and repeat the process: 173 / 19

Moving on to step 5:
The number 19 fits into 173 9 times, leaving a remainder of 2.
The next digit of our result is 9. 
Result so far: 3359.0
The remainder is 2 after subtracting 171 from 173.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 19

Step 6:
If we divide 27 by 19, we get 1 and a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 33591.0
If we subtract 19 from 27, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
19 can be fit into 80 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 33591.4
Subtracting 76 from 80 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
When dividing 40 by 19, we get 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 33591.42
Subtract 38 from 40 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 9:
19 goes into 20 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 33591.421
If we take 19 away from 20, 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.

Going ahead to step 10:
When dividing 10 by 19, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 33591.421
If we subtract 0 from 10, 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.

Step 11:
19 goes into 100 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 33591.42105
If we take 95 away from 100, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 12:
19 can be fit into 50 2 times, resulting in a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 33591.421052
Subtracting 38 from 50 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 13:
120 divided by 19 is 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 33591.4210526
Subtracting 114 from 120 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
When dividing 60 by 19, we get 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 33591.42105263
If we take 57 away from 60, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 33591.42105263, with a leftover of 3e-09.