We look at the division of 65121919 by 790 
The aim is to understand the frequency of 790 in 65121919.

Step 1:
790 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 790

Advancing to step 2:
The number 790 fits into 65 0 times, leaving a remainder of 65.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 65, we get 65.
Include the next digit (1) from the dividend after 65, then repeat: 651 / 790

Going ahead to step 3:
The number 790 fits into 651 0 times, leaving a remainder of 651.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 651 and we're left with 651.
Fetch the next digit (2) from the dividend, attach it to 651 and continue: 6512 / 790

Advancing to step 4:
790 goes into 6512 8 times with a remainder of 192.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 192 after subtracting 6320 from 6512.
Grab the next digit (1) from the dividend, add it to 192, then carry on: 1921 / 790

On to step 5:
1921 divided by 790 is 2 with a remainder of 341.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
Deduct 1580 from 1921 and we're left with 341.
Take the next digit (9) from the dividend and append it to 341, then repeat: 3419 / 790

Step 6:
3419 divided by 790 is 4 with a remainder of 259.
Use 4 as the next digit of our solution. 
Result so far: 824.0
If we take 3160 away from 3419, we end up with 259.
Take the next digit (1) from the dividend and append it to 259, then repeat: 2591 / 790

Advancing to step 7:
790 goes into 2591 3 times with a remainder of 221.
The number 3 becomes the next digit in our result. 
Result so far: 8243.0
If we take 2370 away from 2591, we end up with 221.
Append the next digit (9) from the dividend to 221 and continue with: 2219 / 790

Advancing to step 8:
When dividing 2219 by 790, we get 2 with a remainder of 639.
Put 2 as the next digit of the answer. 
Result so far: 82432.0
Deduct 1580 from 2219 and we're left with 639.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6390, and continue the process.

Moving on to step 9:
If we divide 6390 by 790, we get 8 and a remainder of 70.
Record the quotient 8 as the next digit in the result. 
Result so far: 82432.8
The remainder is 70 after subtracting 6320 from 6390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
790 goes into 700 0 times with a remainder of 700.
Put 0 as the next digit of the answer. 
Result so far: 82432.8
If we take 0 away from 700, we end up with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 11:
790 can be fit into 7000 8 times, resulting in a remainder of 680.
Write down 8 as next digit of the result. 
Result so far: 82432.808
If we subtract 6320 from 7000, we get 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Moving on to step 12:
The number 790 fits into 6800 8 times, leaving a remainder of 480.
Write down 8 as next digit of the result. 
Result so far: 82432.8088
Subtract 6320 from 6800 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

The quotient of the division is 82432.8088, and the remainder is 0.0048.