We're dividing 76676139 by 520 
The aim is to understand the frequency of 520 in 76676139.

Let's proceed to step 1:
7 divided by 520 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 520

Let's proceed to step 2:
520 goes into 76 0 times with a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 76 after subtracting 0 from 76.
Fetch the next digit (6) from the dividend, attach it to 76 and continue: 766 / 520

Step 3:
If we divide 766 by 520, we get 1 and a remainder of 246.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 520 from 766 and we're left with 246.
Take the next digit (7) from the dividend and append it to 246, then repeat: 2467 / 520

On to step 4:
520 can be fit into 2467 4 times, resulting in a remainder of 387.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Deduct 2080 from 2467 and we're left with 387.
Fetch the next digit (6) from the dividend, attach it to 387 and continue: 3876 / 520

Advancing to step 5:
The number 520 fits into 3876 7 times, leaving a remainder of 236.
Put 7 as the next digit of the answer. 
Result so far: 147.0
Subtract 3640 from 3876 to get 236.
Bring next digit (1) of the dividend behind the 236 and repeat the process: 2361 / 520

Going ahead to step 6:
2361 divided by 520 is 4 with a remainder of 281.
Use 4 as the next digit of our solution. 
Result so far: 1474.0
If we subtract 2080 from 2361, we get 281.
Fetch the next digit (3) from the dividend, attach it to 281 and continue: 2813 / 520

Let's proceed to step 7:
The number 520 fits into 2813 5 times, leaving a remainder of 213.
The number 5 becomes the next digit in our result. 
Result so far: 14745.0
Deduct 2600 from 2813 and we're left with 213.
Take the next digit (9) from the dividend and append it to 213, then repeat: 2139 / 520

Step 8:
The number 520 fits into 2139 4 times, leaving a remainder of 59.
Use 4 as the next digit of our solution. 
Result so far: 147454.0
Subtract 2080 from 2139 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 9:
The number 520 fits into 590 1 times, leaving a remainder of 70.
Put 1 as the next digit of the answer. 
Result so far: 147454.1
Subtract 520 from 590 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 10:
If we divide 700 by 520, we get 1 and a remainder of 180.
The number 1 becomes the next digit in our result. 
Result so far: 147454.11
If we take 520 away from 700, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

In conclusion, the division gives 147454.11 with a balance of 0.18.