721243 divided by 37 
We're looking to find how many times 37 goes into 721243.

Moving on to step 1:
7 divided by 37 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 37

Step 2:
If we divide 72 by 37, we get 1 and a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 35 after subtracting 37 from 72.
Append the next digit (1) from the dividend to 35 and continue with: 351 / 37

Going ahead to step 3:
37 can be fit into 351 9 times, resulting in a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 333 from 351, we get 18.
Append the next digit (2) from the dividend to 18 and continue with: 182 / 37

Moving on to step 4:
37 can be fit into 182 4 times, resulting in a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 194.0
Subtracting 148 from 182 leaves us with 34.
Bring next digit (4) of the dividend behind the 34 and repeat the process: 344 / 37

Let's proceed to step 5:
37 goes into 344 9 times with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 1949.0
Subtracting 333 from 344 leaves us with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 37

On to step 6:
37 can be fit into 113 3 times, resulting in a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 19493.0
If we take 111 away from 113, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
The number 37 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 19493.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
37 goes into 200 5 times with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 19493.05
The remainder is 15 after subtracting 185 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
The number 37 fits into 150 4 times, leaving a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 19493.054
If we subtract 148 from 150, we 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.

Going ahead to step 10:
The number 37 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 19493.054
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
37 goes into 200 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 19493.05405
If we take 185 away from 200, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 12:
If we divide 150 by 37, we get 4 and a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 19493.054054
Subtracting 148 from 150 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 13:
If we divide 20 by 37, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 19493.054054
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 14:
37 can be fit into 200 5 times, resulting in a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 19493.05405405
If we take 185 away from 200, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 19493.05405405, with a leftover of 1.5e-08.