21019 ÷ 37 
We want to figure out the number of times 21019 can be divided by 37.

Advancing to step 1:
If we divide 2 by 37, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 37

Let's proceed to step 2:
21 divided by 37 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 37

On to step 3:
The number 37 fits into 210 5 times, leaving a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 25 after subtracting 185 from 210.
Include the next digit (1) from the dividend after 25, then repeat: 251 / 37

Advancing to step 4:
If we divide 251 by 37, we get 6 and a remainder of 29.
The next digit of our result is 6. 
Result so far: 56.0
Subtract 222 from 251 to get 29.
Fetch the next digit (9) from the dividend, attach it to 29 and continue: 299 / 37

Moving on to step 5:
If we divide 299 by 37, we get 8 and a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 568.0
The remainder is 3 after subtracting 296 from 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 6:
If we divide 30 by 37, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 568.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 7:
37 goes into 300 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 568.08
If we take 296 away from 300, we end up 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.

Moving on to step 8:
The number 37 fits into 40 1 times, leaving a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 568.081
Subtract 37 from 40 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
If we divide 30 by 37, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 568.081
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 10:
37 goes into 300 8 times with a remainder of 4.
The next digit of our result is 8. 
Result so far: 568.08108
If we take 296 away from 300, we end up 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 11:
When dividing 40 by 37, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 568.081081
If we take 37 away from 40, 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.

Let's proceed to step 12:
When dividing 30 by 37, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 568.081081
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 13:
300 divided by 37 is 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 568.08108108
If we subtract 296 from 300, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 568.08108108 and a remainder of 4e-09.