We're dividing 766341 by 15 
The aim is to understand the frequency of 15 in 766341.

On to step 1:
When dividing 7 by 15, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 15

Step 2:
15 goes into 76 5 times with a remainder of 1.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 75 from 76 and we're left with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 15

Advancing to step 3:
15 goes into 16 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
The remainder is 1 after subtracting 15 from 16.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 15

Step 4:
If we divide 13 by 15, we get 0 and a remainder of 13.
The next digit of our result is 0. 
Result so far: 510.0
The remainder is 13 after subtracting 0 from 13.
Fetch the next digit (4) from the dividend, attach it to 13 and continue: 134 / 15

Let's proceed to step 5:
15 can be fit into 134 8 times, resulting in a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 5108.0
Subtract 120 from 134 to get 14.
Bring next digit (1) of the dividend behind the 14 and repeat the process: 141 / 15

On to step 6:
The number 15 fits into 141 9 times, leaving a remainder of 6.
The next digit of our result is 9. 
Result so far: 51089.0
Subtract 135 from 141 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
15 can be fit into 60 4 times, resulting in a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 51089.4
If we take 60 away from 60, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
If we divide 0 by 15, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 51089.4
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
15 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 51089.4
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 51089.4 with a balance of 0.0.