We look at the division of 637353 by 818 
The aim is to understand the frequency of 818 in 637353.

Advancing to step 1:
818 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 818

Going ahead to step 2:
63 divided by 818 is 0 with a remainder of 63.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Grab the next digit (7) from the dividend, add it to 63, then carry on: 637 / 818

Moving on to step 3:
818 goes into 637 0 times with a remainder of 637.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 637, we get 637.
Fetch the next digit (3) from the dividend, attach it to 637 and continue: 6373 / 818

Step 4:
818 can be fit into 6373 7 times, resulting in a remainder of 647.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 647 after subtracting 5726 from 6373.
Bring next digit (5) of the dividend behind the 647 and repeat the process: 6475 / 818

Moving on to step 5:
6475 divided by 818 is 7 with a remainder of 749.
The next digit of our result is 7. 
Result so far: 77.0
Subtract 5726 from 6475 to get 749.
Append the next digit (3) from the dividend to 749 and continue with: 7493 / 818

Going ahead to step 6:
7493 divided by 818 is 9 with a remainder of 131.
Write down 9 as next digit of the result. 
Result so far: 779.0
If we subtract 7362 from 7493, we get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Going ahead to step 7:
When dividing 1310 by 818, we get 1 with a remainder of 492.
The next digit of our result is 1. 
Result so far: 779.1
If we subtract 818 from 1310, we get 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Step 8:
818 goes into 4920 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 779.16
If we take 4908 away from 4920, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
When dividing 120 by 818, we get 0 with a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 779.16
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 10:
1200 divided by 818 is 1 with a remainder of 382.
Record the quotient 1 as the next digit in the result. 
Result so far: 779.1601
If we subtract 818 from 1200, we get 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Going ahead to step 11:
3820 divided by 818 is 4 with a remainder of 548.
Record the quotient 4 as the next digit in the result. 
Result so far: 779.16014
If we subtract 3272 from 3820, we get 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Going ahead to step 12:
818 goes into 5480 6 times with a remainder of 572.
Use 6 as the next digit of our solution. 
Result so far: 779.160146
Deduct 4908 from 5480 and we're left with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Let's proceed to step 13:
The number 818 fits into 5720 6 times, leaving a remainder of 812.
The next digit of our result is 6. 
Result so far: 779.1601466
If we take 4908 away from 5720, we end up with 812.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8120, and continue the process.

After the division, we end up with 779.1601466 and a remainder of 8.12e-06.