55433130 ÷ 648 
The aim is to understand the frequency of 648 in 55433130.

Going ahead to step 1:
648 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 648

Advancing to step 2:
55 divided by 648 is 0 with a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 55, we get 55.
Grab the next digit (4) from the dividend, add it to 55, then carry on: 554 / 648

On to step 3:
When dividing 554 by 648, we get 0 with a remainder of 554.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 554 to get 554.
Append the next digit (3) from the dividend to 554 and continue with: 5543 / 648

Going ahead to step 4:
648 goes into 5543 8 times with a remainder of 359.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 5184 from 5543 leaves us with 359.
Include the next digit (3) from the dividend after 359, then repeat: 3593 / 648

Moving on to step 5:
If we divide 3593 by 648, we get 5 and a remainder of 353.
The next digit of our result is 5. 
Result so far: 85.0
Subtract 3240 from 3593 to get 353.
Take the next digit (1) from the dividend and append it to 353, then repeat: 3531 / 648

On to step 6:
The number 648 fits into 3531 5 times, leaving a remainder of 291.
The next digit of our result is 5. 
Result so far: 855.0
If we take 3240 away from 3531, we end up with 291.
Fetch the next digit (3) from the dividend, attach it to 291 and continue: 2913 / 648

Let's proceed to step 7:
The number 648 fits into 2913 4 times, leaving a remainder of 321.
Write down 4 as next digit of the result. 
Result so far: 8554.0
If we subtract 2592 from 2913, we get 321.
Fetch the next digit (0) from the dividend, attach it to 321 and continue: 3210 / 648

Going ahead to step 8:
If we divide 3210 by 648, we get 4 and a remainder of 618.
Record the quotient 4 as the next digit in the result. 
Result so far: 85544.0
Subtract 2592 from 3210 to get 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

Advancing to step 9:
When dividing 6180 by 648, we get 9 with a remainder of 348.
Record the quotient 9 as the next digit in the result. 
Result so far: 85544.9
The remainder is 348 after subtracting 5832 from 6180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Advancing to step 10:
648 can be fit into 3480 5 times, resulting in a remainder of 240.
Put 5 as the next digit of the answer. 
Result so far: 85544.95
Subtract 3240 from 3480 to 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.

Moving on to step 11:
The number 648 fits into 2400 3 times, leaving a remainder of 456.
Write down 3 as next digit of the result. 
Result so far: 85544.953
If we take 1944 away from 2400, we end up with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

On to step 12:
When dividing 4560 by 648, we get 7 with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 85544.9537
If we take 4536 away from 4560, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 13:
The number 648 fits into 240 0 times, leaving a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 85544.9537
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 14:
When dividing 2400 by 648, we get 3 with a remainder of 456.
Write down 3 as next digit of the result. 
Result so far: 85544.953703
Subtracting 1944 from 2400 leaves us with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Advancing to step 15:
648 goes into 4560 7 times with a remainder of 24.
The next digit of our result is 7. 
Result so far: 85544.9537037
Deduct 4536 from 4560 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 16:
If we divide 240 by 648, we get 0 and a remainder of 240.
Write down 0 as next digit of the result. 
Result so far: 85544.9537037
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Our division results in 85544.9537037 with a remaining 2.4e-07.