We look at the division of 721688 by 37 
We're looking to find how many times 37 goes into 721688.

Let's proceed to step 1:
When dividing 7 by 37, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 37

Moving on to 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
Deduct 37 from 72 and we're left with 35.
Take the next digit (1) from the dividend and append it to 35, then repeat: 351 / 37

Advancing to step 3:
If we divide 351 by 37, we get 9 and a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
If we take 333 away from 351, we end up with 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 37

Let's proceed to step 4:
When dividing 186 by 37, we get 5 with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 195.0
Subtract 185 from 186 to get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 37

Moving on to step 5:
37 goes into 18 0 times with a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 1950.0
Subtracting 0 from 18 leaves us with 18.
Append the next digit (8) from the dividend to 18 and continue with: 188 / 37

On to step 6:
If we divide 188 by 37, we get 5 and a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 19505.0
Subtracting 185 from 188 leaves us 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.

Advancing to step 7:
If we divide 30 by 37, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 19505.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
37 goes into 300 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 19505.08
Deduct 296 from 300 and we're left 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.

On to step 9:
37 goes into 40 1 times with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 19505.081
If we subtract 37 from 40, we 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.

Let's proceed to step 10:
37 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 19505.081
Subtracting 0 from 30 leaves us 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.

Going ahead to step 11:
The number 37 fits into 300 8 times, leaving a remainder of 4.
The next digit of our result is 8. 
Result so far: 19505.08108
Subtracting 296 from 300 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.

Step 12:
37 can be fit into 40 1 times, resulting in a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 19505.081081
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.

Let's proceed to step 13:
30 divided by 37 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 19505.081081
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 14:
The number 37 fits into 300 8 times, leaving a remainder of 4.
The next digit of our result is 8. 
Result so far: 19505.08108108
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 19505.08108108 and a remainder of 4e-09.