72705989 ÷ 687 
The aim is to understand the frequency of 687 in 72705989.

Step 1:
The number 687 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
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 / 687

Going ahead to step 2:
The number 687 fits into 72 0 times, leaving a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Take the next digit (7) from the dividend and append it to 72, then repeat: 727 / 687

Let's proceed to step 3:
When dividing 727 by 687, we get 1 with a remainder of 40.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 687 away from 727, we end up with 40.
Include the next digit (0) from the dividend after 40, then repeat: 400 / 687

Going ahead to step 4:
The number 687 fits into 400 0 times, leaving a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 400, we get 400.
Include the next digit (5) from the dividend after 400, then repeat: 4005 / 687

On to step 5:
If we divide 4005 by 687, we get 5 and a remainder of 570.
Put 5 as the next digit of the answer. 
Result so far: 105.0
The remainder is 570 after subtracting 3435 from 4005.
Bring next digit (9) of the dividend behind the 570 and repeat the process: 5709 / 687

Step 6:
687 goes into 5709 8 times with a remainder of 213.
Record the quotient 8 as the next digit in the result. 
Result so far: 1058.0
The remainder is 213 after subtracting 5496 from 5709.
Include the next digit (8) from the dividend after 213, then repeat: 2138 / 687

Let's proceed to step 7:
The number 687 fits into 2138 3 times, leaving a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 10583.0
If we take 2061 away from 2138, we end up with 77.
Include the next digit (9) from the dividend after 77, then repeat: 779 / 687

Going ahead to step 8:
The number 687 fits into 779 1 times, leaving a remainder of 92.
The next digit of our result is 1. 
Result so far: 105831.0
Subtracting 687 from 779 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 9:
920 divided by 687 is 1 with a remainder of 233.
Record the quotient 1 as the next digit in the result. 
Result so far: 105831.1
The remainder is 233 after subtracting 687 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Going ahead to step 10:
687 can be fit into 2330 3 times, resulting in a remainder of 269.
Put 3 as the next digit of the answer. 
Result so far: 105831.13
If we subtract 2061 from 2330, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Advancing to step 11:
If we divide 2690 by 687, we get 3 and a remainder of 629.
The number 3 becomes the next digit in our result. 
Result so far: 105831.133
Subtract 2061 from 2690 to get 629.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6290, and continue the process.

Our division results in 105831.133 with a remaining 0.0629.