56943690 ÷ 648 
The aim is to understand the frequency of 648 in 56943690.

Let's proceed to step 1:
648 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 648

Moving on to step 2:
648 goes into 56 0 times with a remainder of 56.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 56, we get 56.
Bring next digit (9) of the dividend behind the 56 and repeat the process: 569 / 648

Moving on to step 3:
648 goes into 569 0 times with a remainder of 569.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 569 after subtracting 0 from 569.
Fetch the next digit (4) from the dividend, attach it to 569 and continue: 5694 / 648

Step 4:
648 goes into 5694 8 times with a remainder of 510.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 510 after subtracting 5184 from 5694.
Fetch the next digit (3) from the dividend, attach it to 510 and continue: 5103 / 648

Let's proceed to step 5:
When dividing 5103 by 648, we get 7 with a remainder of 567.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we subtract 4536 from 5103, we get 567.
Bring next digit (6) of the dividend behind the 567 and repeat the process: 5676 / 648

Going ahead to step 6:
If we divide 5676 by 648, we get 8 and a remainder of 492.
Put 8 as the next digit of the answer. 
Result so far: 878.0
The remainder is 492 after subtracting 5184 from 5676.
Bring next digit (9) of the dividend behind the 492 and repeat the process: 4929 / 648

On to step 7:
If we divide 4929 by 648, we get 7 and a remainder of 393.
The number 7 becomes the next digit in our result. 
Result so far: 8787.0
If we subtract 4536 from 4929, we get 393.
Fetch the next digit (0) from the dividend, attach it to 393 and continue: 3930 / 648

Let's proceed to step 8:
If we divide 3930 by 648, we get 6 and a remainder of 42.
Put 6 as the next digit of the answer. 
Result so far: 87876.0
The remainder is 42 after subtracting 3888 from 3930.
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 9:
If we divide 420 by 648, we get 0 and a remainder of 420.
Put 0 as the next digit of the answer. 
Result so far: 87876.0
Deduct 0 from 420 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 10:
The number 648 fits into 4200 6 times, leaving a remainder of 312.
Write down 6 as next digit of the result. 
Result so far: 87876.06
If we take 3888 away from 4200, we end up with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Moving on to step 11:
648 can be fit into 3120 4 times, resulting in a remainder of 528.
Record the quotient 4 as the next digit in the result. 
Result so far: 87876.064
Subtracting 2592 from 3120 leaves us with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Advancing to step 12:
648 goes into 5280 8 times with a remainder of 96.
Put 8 as the next digit of the answer. 
Result so far: 87876.0648
If we take 5184 away from 5280, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 13:
648 can be fit into 960 1 times, resulting in a remainder of 312.
Use 1 as the next digit of our solution. 
Result so far: 87876.06481
If we subtract 648 from 960, we get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Advancing to step 14:
If we divide 3120 by 648, we get 4 and a remainder of 528.
Record the quotient 4 as the next digit in the result. 
Result so far: 87876.064814
Deduct 2592 from 3120 and we're left with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

On to step 15:
When dividing 5280 by 648, we get 8 with a remainder of 96.
Use 8 as the next digit of our solution. 
Result so far: 87876.0648148
Deduct 5184 from 5280 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 16:
960 divided by 648 is 1 with a remainder of 312.
Put 1 as the next digit of the answer. 
Result so far: 87876.06481481
If we subtract 648 from 960, we get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

In conclusion, the division gives 87876.06481481 with a balance of 3.12e-07.