We're dividing 55602878 by 631 
The aim is to understand the frequency of 631 in 55602878.

Going ahead to step 1:
631 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 631

On to step 2:
If we divide 55 by 631, we get 0 and a remainder of 55.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Grab the next digit (6) from the dividend, add it to 55, then carry on: 556 / 631

Moving on to step 3:
556 divided by 631 is 0 with a remainder of 556.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 556 to get 556.
Append the next digit (0) from the dividend to 556 and continue with: 5560 / 631

Going ahead to step 4:
If we divide 5560 by 631, we get 8 and a remainder of 512.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 5048 away from 5560, we end up with 512.
Include the next digit (2) from the dividend after 512, then repeat: 5122 / 631

Advancing to step 5:
If we divide 5122 by 631, we get 8 and a remainder of 74.
The next digit of our result is 8. 
Result so far: 88.0
Deduct 5048 from 5122 and we're left with 74.
Bring next digit (8) of the dividend behind the 74 and repeat the process: 748 / 631

Going ahead to step 6:
The number 631 fits into 748 1 times, leaving a remainder of 117.
Put 1 as the next digit of the answer. 
Result so far: 881.0
Subtract 631 from 748 to get 117.
Take the next digit (7) from the dividend and append it to 117, then repeat: 1177 / 631

On to step 7:
631 can be fit into 1177 1 times, resulting in a remainder of 546.
Put 1 as the next digit of the answer. 
Result so far: 8811.0
Subtracting 631 from 1177 leaves us with 546.
Append the next digit (8) from the dividend to 546 and continue with: 5468 / 631

Step 8:
If we divide 5468 by 631, we get 8 and a remainder of 420.
Put 8 as the next digit of the answer. 
Result so far: 88118.0
Deduct 5048 from 5468 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.

On to step 9:
The number 631 fits into 4200 6 times, leaving a remainder of 414.
Put 6 as the next digit of the answer. 
Result so far: 88118.6
Subtracting 3786 from 4200 leaves us with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Going ahead to step 10:
631 goes into 4140 6 times with a remainder of 354.
The number 6 becomes the next digit in our result. 
Result so far: 88118.66
Subtracting 3786 from 4140 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

The quotient of the division is 88118.66, and the remainder is 0.354.