We look at the division of 34925178 by 721 
The aim is to understand the frequency of 721 in 34925178.

Advancing to step 1:
3 divided by 721 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 721

Going ahead to step 2:
721 can be fit into 34 0 times, resulting in a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Take the next digit (9) from the dividend and append it to 34, then repeat: 349 / 721

On to step 3:
If we divide 349 by 721, we get 0 and a remainder of 349.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 349 leaves us with 349.
Include the next digit (2) from the dividend after 349, then repeat: 3492 / 721

Moving on to step 4:
3492 divided by 721 is 4 with a remainder of 608.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 2884 from 3492, we get 608.
Append the next digit (5) from the dividend to 608 and continue with: 6085 / 721

Advancing to step 5:
721 goes into 6085 8 times with a remainder of 317.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
Subtract 5768 from 6085 to get 317.
Take the next digit (1) from the dividend and append it to 317, then repeat: 3171 / 721

Step 6:
The number 721 fits into 3171 4 times, leaving a remainder of 287.
The number 4 becomes the next digit in our result. 
Result so far: 484.0
If we subtract 2884 from 3171, we get 287.
Append the next digit (7) from the dividend to 287 and continue with: 2877 / 721

On to step 7:
721 goes into 2877 3 times with a remainder of 714.
Put 3 as the next digit of the answer. 
Result so far: 4843.0
Deduct 2163 from 2877 and we're left with 714.
Append the next digit (8) from the dividend to 714 and continue with: 7148 / 721

Let's proceed to step 8:
When dividing 7148 by 721, we get 9 with a remainder of 659.
Use 9 as the next digit of our solution. 
Result so far: 48439.0
Subtract 6489 from 7148 to get 659.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6590, and continue the process.

Step 9:
721 goes into 6590 9 times with a remainder of 101.
Put 9 as the next digit of the answer. 
Result so far: 48439.9
Subtracting 6489 from 6590 leaves us with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Advancing to step 10:
When dividing 1010 by 721, we get 1 with a remainder of 289.
Record the quotient 1 as the next digit in the result. 
Result so far: 48439.91
Deduct 721 from 1010 and we're left with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Moving on to step 11:
If we divide 2890 by 721, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 48439.914
Deduct 2884 from 2890 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 12:
60 divided by 721 is 0 with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 48439.914
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
721 can be fit into 600 0 times, resulting in a remainder of 600.
The next digit of our result is 0. 
Result so far: 48439.914
If we subtract 0 from 600, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The quotient of the division is 48439.914, and the remainder is 0.0006.