We divide 5220123 by 78
The aim is to understand the frequency of 78 in 5220123.

Step 1:
78 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 78

Advancing to step 2:
52 divided by 78 is 0 with a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Fetch the next digit (2) from the dividend, attach it to 52 and continue: 522 / 78

Advancing to step 3:
If we divide 522 by 78, we get 6 and a remainder of 54.
The next digit of our result is 6. 
Result so far: 6.0
If we take 468 away from 522, we end up with 54.
Grab the next digit (0) from the dividend, add it to 54, then carry on: 540 / 78

Step 4:
540 divided by 78 is 6 with a remainder of 72.
The next digit of our result is 6. 
Result so far: 66.0
If we take 468 away from 540, we end up with 72.
Grab the next digit (1) from the dividend, add it to 72, then carry on: 721 / 78

On to step 5:
78 goes into 721 9 times with a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 669.0
If we subtract 702 from 721, we get 19.
Take the next digit (2) from the dividend and append it to 19, then repeat: 192 / 78

Advancing to step 6:
78 goes into 192 2 times with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 6692.0
If we subtract 156 from 192, we get 36.
Bring next digit (3) of the dividend behind the 36 and repeat the process: 363 / 78

On to step 7:
78 can be fit into 363 4 times, resulting in a remainder of 51.
Record the quotient 4 as the next digit in the result. 
Result so far: 66924.0
Subtracting 312 from 363 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 8:
78 can be fit into 510 6 times, resulting in a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 66924.6
Deduct 468 from 510 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
When dividing 420 by 78, we get 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 66924.65
Subtract 390 from 420 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
The number 78 fits into 300 3 times, leaving a remainder of 66.
Use 3 as the next digit of our solution. 
Result so far: 66924.653
Subtract 234 from 300 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 11:
78 goes into 660 8 times with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 66924.6538
The remainder is 36 after subtracting 624 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 12:
The number 78 fits into 360 4 times, leaving a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 66924.65384
If we subtract 312 from 360, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 13:
78 can be fit into 480 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 66924.653846
Subtract 468 from 480 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 14:
If we divide 120 by 78, we get 1 and a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 66924.6538461
Subtract 78 from 120 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 15:
78 goes into 420 5 times with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 66924.65384615
Subtract 390 from 420 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The quotient of the division is 66924.65384615, and the remainder is 3e-08.