7713755 ÷ 721 
The aim is to understand the frequency of 721 in 7713755.

Advancing to step 1:
721 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 721

Moving on to step 2:
If we divide 77 by 721, we get 0 and a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Bring next digit (1) of the dividend behind the 77 and repeat the process: 771 / 721

Advancing to step 3:
If we divide 771 by 721, we get 1 and a remainder of 50.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 721 from 771 and we're left with 50.
Include the next digit (3) from the dividend after 50, then repeat: 503 / 721

Let's proceed to step 4:
The number 721 fits into 503 0 times, leaving a remainder of 503.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 503, we get 503.
Bring next digit (7) of the dividend behind the 503 and repeat the process: 5037 / 721

Going ahead to step 5:
When dividing 5037 by 721, we get 6 with a remainder of 711.
The next digit of our result is 6. 
Result so far: 106.0
Subtract 4326 from 5037 to get 711.
Append the next digit (5) from the dividend to 711 and continue with: 7115 / 721

Let's proceed to step 6:
7115 divided by 721 is 9 with a remainder of 626.
Record the quotient 9 as the next digit in the result. 
Result so far: 1069.0
If we take 6489 away from 7115, we end up with 626.
Bring next digit (5) of the dividend behind the 626 and repeat the process: 6265 / 721

Moving on to step 7:
When dividing 6265 by 721, we get 8 with a remainder of 497.
The number 8 becomes the next digit in our result. 
Result so far: 10698.0
Subtracting 5768 from 6265 leaves us with 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

Advancing to step 8:
The number 721 fits into 4970 6 times, leaving a remainder of 644.
Record the quotient 6 as the next digit in the result. 
Result so far: 10698.6
Subtract 4326 from 4970 to get 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

On to step 9:
721 can be fit into 6440 8 times, resulting in a remainder of 672.
Use 8 as the next digit of our solution. 
Result so far: 10698.68
Subtract 5768 from 6440 to get 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Let's proceed to step 10:
When dividing 6720 by 721, we get 9 with a remainder of 231.
The next digit of our result is 9. 
Result so far: 10698.689
If we take 6489 away from 6720, we end up with 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Moving on to step 11:
721 goes into 2310 3 times with a remainder of 147.
Use 3 as the next digit of our solution. 
Result so far: 10698.6893
Deduct 2163 from 2310 and we're left with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Advancing to step 12:
721 goes into 1470 2 times with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 10698.68932
Subtract 1442 from 1470 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 13:
When dividing 280 by 721, we get 0 with a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 10698.68932
Subtracting 0 from 280 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 14:
721 goes into 2800 3 times with a remainder of 637.
Write down 3 as next digit of the result. 
Result so far: 10698.6893203
If we take 2163 away from 2800, we end up with 637.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6370, and continue the process.

Step 15:
When dividing 6370 by 721, we get 8 with a remainder of 602.
The number 8 becomes the next digit in our result. 
Result so far: 10698.68932038
Subtracting 5768 from 6370 leaves us with 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

The quotient of the division is 10698.68932038, and the remainder is 6.02e-07.