Let's divide 13494988 by 820
The aim is to understand the frequency of 820 in 13494988.

Advancing to step 1:
If we divide 1 by 820, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 820

On to step 2:
When dividing 13 by 820, we get 0 with a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 820

Let's proceed to step 3:
The number 820 fits into 134 0 times, leaving a remainder of 134.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 134 leaves us with 134.
Take the next digit (9) from the dividend and append it to 134, then repeat: 1349 / 820

Step 4:
When dividing 1349 by 820, we get 1 with a remainder of 529.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 820 from 1349 to get 529.
Take the next digit (4) from the dividend and append it to 529, then repeat: 5294 / 820

Moving on to step 5:
820 goes into 5294 6 times with a remainder of 374.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we subtract 4920 from 5294, we get 374.
Bring next digit (9) of the dividend behind the 374 and repeat the process: 3749 / 820

Step 6:
The number 820 fits into 3749 4 times, leaving a remainder of 469.
Write down 4 as next digit of the result. 
Result so far: 164.0
Subtract 3280 from 3749 to get 469.
Append the next digit (8) from the dividend to 469 and continue with: 4698 / 820

Step 7:
If we divide 4698 by 820, we get 5 and a remainder of 598.
The number 5 becomes the next digit in our result. 
Result so far: 1645.0
Subtract 4100 from 4698 to get 598.
Append the next digit (8) from the dividend to 598 and continue with: 5988 / 820

Advancing to step 8:
The number 820 fits into 5988 7 times, leaving a remainder of 248.
Record the quotient 7 as the next digit in the result. 
Result so far: 16457.0
If we take 5740 away from 5988, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Advancing to step 9:
If we divide 2480 by 820, we get 3 and a remainder of 20.
The number 3 becomes the next digit in our result. 
Result so far: 16457.3
The remainder is 20 after subtracting 2460 from 2480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
820 goes into 200 0 times with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 16457.3
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 11:
The number 820 fits into 2000 2 times, leaving a remainder of 360.
Write down 2 as next digit of the result. 
Result so far: 16457.302
Subtracting 1640 from 2000 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 12:
820 goes into 3600 4 times with a remainder of 320.
The next digit of our result is 4. 
Result so far: 16457.3024
Subtract 3280 from 3600 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 13:
820 goes into 3200 3 times with a remainder of 740.
Put 3 as the next digit of the answer. 
Result so far: 16457.30243
Subtract 2460 from 3200 to get 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Let's proceed to step 14:
The number 820 fits into 7400 9 times, leaving a remainder of 20.
The next digit of our result is 9. 
Result so far: 16457.302439
The remainder is 20 after subtracting 7380 from 7400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 15:
820 can be fit into 200 0 times, resulting in a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 16457.302439
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 16:
If we divide 2000 by 820, we get 2 and a remainder of 360.
Write down 2 as next digit of the result. 
Result so far: 16457.30243902
Subtract 1640 from 2000 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

The final outcome is 16457.30243902, with a leftover of 3.6e-07.