76521297 divided by 390 
The aim is to understand the frequency of 390 in 76521297.

Moving on to step 1:
7 divided by 390 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 390

Step 2:
76 divided by 390 is 0 with a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 76, we get 76.
Fetch the next digit (5) from the dividend, attach it to 76 and continue: 765 / 390

Advancing to step 3:
The number 390 fits into 765 1 times, leaving a remainder of 375.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 375 after subtracting 390 from 765.
Bring next digit (2) of the dividend behind the 375 and repeat the process: 3752 / 390

Moving on to step 4:
When dividing 3752 by 390, we get 9 with a remainder of 242.
Write down 9 as next digit of the result. 
Result so far: 19.0
If we take 3510 away from 3752, we end up with 242.
Grab the next digit (1) from the dividend, add it to 242, then carry on: 2421 / 390

Let's proceed to step 5:
If we divide 2421 by 390, we get 6 and a remainder of 81.
Use 6 as the next digit of our solution. 
Result so far: 196.0
Subtracting 2340 from 2421 leaves us with 81.
Include the next digit (2) from the dividend after 81, then repeat: 812 / 390

Step 6:
The number 390 fits into 812 2 times, leaving a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 1962.0
If we take 780 away from 812, we end up with 32.
Append the next digit (9) from the dividend to 32 and continue with: 329 / 390

Step 7:
When dividing 329 by 390, we get 0 with a remainder of 329.
Write down 0 as next digit of the result. 
Result so far: 19620.0
If we take 0 away from 329, we end up with 329.
Bring next digit (7) of the dividend behind the 329 and repeat the process: 3297 / 390

Let's proceed to step 8:
3297 divided by 390 is 8 with a remainder of 177.
The number 8 becomes the next digit in our result. 
Result so far: 196208.0
Subtract 3120 from 3297 to get 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Moving on to step 9:
When dividing 1770 by 390, we get 4 with a remainder of 210.
Use 4 as the next digit of our solution. 
Result so far: 196208.4
Subtract 1560 from 1770 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 10:
When dividing 2100 by 390, we get 5 with a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 196208.45
If we subtract 1950 from 2100, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 11:
390 can be fit into 1500 3 times, resulting in a remainder of 330.
Use 3 as the next digit of our solution. 
Result so far: 196208.453
If we take 1170 away from 1500, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 12:
If we divide 3300 by 390, we get 8 and a remainder of 180.
The number 8 becomes the next digit in our result. 
Result so far: 196208.4538
If we take 3120 away from 3300, 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.

On to step 13:
When dividing 1800 by 390, we get 4 with a remainder of 240.
Put 4 as the next digit of the answer. 
Result so far: 196208.45384
If we subtract 1560 from 1800, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 14:
390 can be fit into 2400 6 times, resulting in a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 196208.453846
Subtract 2340 from 2400 to get 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 15:
600 divided by 390 is 1 with a remainder of 210.
The number 1 becomes the next digit in our result. 
Result so far: 196208.4538461
If we take 390 away from 600, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 16:
2100 divided by 390 is 5 with a remainder of 150.
Use 5 as the next digit of our solution. 
Result so far: 196208.45384615
Subtract 1950 from 2100 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final result is 196208.45384615 with a remainder of 1.5e-07.