We divide 53649701 by 78
The aim is to understand the frequency of 78 in 53649701.

Let's proceed to step 1:
5 divided by 78 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 78

Step 2:
78 goes into 53 0 times with a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Bring next digit (6) of the dividend behind the 53 and repeat the process: 536 / 78

Going ahead to step 3:
If we divide 536 by 78, we get 6 and a remainder of 68.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtract 468 from 536 to get 68.
Append the next digit (4) from the dividend to 68 and continue with: 684 / 78

Step 4:
The number 78 fits into 684 8 times, leaving a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 68.0
Subtract 624 from 684 to get 60.
Bring next digit (9) of the dividend behind the 60 and repeat the process: 609 / 78

Step 5:
78 can be fit into 609 7 times, resulting in a remainder of 63.
Use 7 as the next digit of our solution. 
Result so far: 687.0
Subtracting 546 from 609 leaves us with 63.
Include the next digit (7) from the dividend after 63, then repeat: 637 / 78

Going ahead to step 6:
78 can be fit into 637 8 times, resulting in a remainder of 13.
Record the quotient 8 as the next digit in the result. 
Result so far: 6878.0
If we subtract 624 from 637, we get 13.
Include the next digit (0) from the dividend after 13, then repeat: 130 / 78

Going ahead to step 7:
130 divided by 78 is 1 with a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 68781.0
Subtract 78 from 130 to get 52.
Include the next digit (1) from the dividend after 52, then repeat: 521 / 78

Advancing to step 8:
If we divide 521 by 78, we get 6 and a remainder of 53.
The number 6 becomes the next digit in our result. 
Result so far: 687816.0
The remainder is 53 after subtracting 468 from 521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 9:
530 divided by 78 is 6 with a remainder of 62.
Write down 6 as next digit of the result. 
Result so far: 687816.6
If we take 468 away from 530, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 10:
78 can be fit into 620 7 times, resulting in a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 687816.67
If we subtract 546 from 620, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 11:
740 divided by 78 is 9 with a remainder of 38.
Record the quotient 9 as the next digit in the result. 
Result so far: 687816.679
Subtracting 702 from 740 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 12:
380 divided by 78 is 4 with a remainder of 68.
The number 4 becomes the next digit in our result. 
Result so far: 687816.6794
The remainder is 68 after subtracting 312 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 13:
The number 78 fits into 680 8 times, leaving a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 687816.67948
Subtract 624 from 680 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 14:
78 goes into 560 7 times with a remainder of 14.
The next digit of our result is 7. 
Result so far: 687816.679487
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 15:
If we divide 140 by 78, we get 1 and a remainder of 62.
Write down 1 as next digit of the result. 
Result so far: 687816.6794871
Deduct 78 from 140 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 16:
620 divided by 78 is 7 with a remainder of 74.
The next digit of our result is 7. 
Result so far: 687816.67948717
If we take 546 away from 620, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Our division results in 687816.67948717 with a remaining 7.4e-08.