We look at the division of 63539610 by 818 
The aim is to understand the frequency of 818 in 63539610.

Let's proceed to step 1:
If we divide 6 by 818, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 818

Step 2:
The number 818 fits into 63 0 times, leaving a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Take the next digit (5) from the dividend and append it to 63, then repeat: 635 / 818

Going ahead to step 3:
818 goes into 635 0 times with a remainder of 635.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 635, we get 635.
Fetch the next digit (3) from the dividend, attach it to 635 and continue: 6353 / 818

Let's proceed to step 4:
818 can be fit into 6353 7 times, resulting in a remainder of 627.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 5726 from 6353 to get 627.
Append the next digit (9) from the dividend to 627 and continue with: 6279 / 818

On to step 5:
818 can be fit into 6279 7 times, resulting in a remainder of 553.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
If we take 5726 away from 6279, we end up with 553.
Bring next digit (6) of the dividend behind the 553 and repeat the process: 5536 / 818

Going ahead to step 6:
818 goes into 5536 6 times with a remainder of 628.
Record the quotient 6 as the next digit in the result. 
Result so far: 776.0
Subtracting 4908 from 5536 leaves us with 628.
Take the next digit (1) from the dividend and append it to 628, then repeat: 6281 / 818

Advancing to step 7:
6281 divided by 818 is 7 with a remainder of 555.
Use 7 as the next digit of our solution. 
Result so far: 7767.0
Subtract 5726 from 6281 to get 555.
Include the next digit (0) from the dividend after 555, then repeat: 5550 / 818

Let's proceed to step 8:
818 can be fit into 5550 6 times, resulting in a remainder of 642.
The next digit of our result is 6. 
Result so far: 77676.0
Subtract 4908 from 5550 to get 642.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6420, and continue the process.

Advancing to step 9:
6420 divided by 818 is 7 with a remainder of 694.
Write down 7 as next digit of the result. 
Result so far: 77676.7
The remainder is 694 after subtracting 5726 from 6420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6940, and continue the process.

On to step 10:
6940 divided by 818 is 8 with a remainder of 396.
The next digit of our result is 8. 
Result so far: 77676.78
If we subtract 6544 from 6940, we get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Step 11:
If we divide 3960 by 818, we get 4 and a remainder of 688.
Use 4 as the next digit of our solution. 
Result so far: 77676.784
If we take 3272 away from 3960, we end up with 688.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

On to step 12:
If we divide 6880 by 818, we get 8 and a remainder of 336.
Record the quotient 8 as the next digit in the result. 
Result so far: 77676.7848
Subtracting 6544 from 6880 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Going ahead to step 13:
818 can be fit into 3360 4 times, resulting in a remainder of 88.
Use 4 as the next digit of our solution. 
Result so far: 77676.78484
If we subtract 3272 from 3360, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 14:
When dividing 880 by 818, we get 1 with a remainder of 62.
Use 1 as the next digit of our solution. 
Result so far: 77676.784841
If we take 818 away from 880, 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 15:
818 goes into 620 0 times with a remainder of 620.
The number 0 becomes the next digit in our result. 
Result so far: 77676.784841
The remainder is 620 after subtracting 0 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Let's proceed to step 16:
818 goes into 6200 7 times with a remainder of 474.
Record the quotient 7 as the next digit in the result. 
Result so far: 77676.78484107
Subtracting 5726 from 6200 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

The final result is 77676.78484107 with a remainder of 4.74e-07.