Let's divide 17981653 by 339
The aim is to understand the frequency of 339 in 17981653.

Going ahead to step 1:
If we divide 1 by 339, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 339

On to step 2:
The number 339 fits into 17 0 times, leaving a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Append the next digit (9) from the dividend to 17 and continue with: 179 / 339

On to step 3:
339 goes into 179 0 times with a remainder of 179.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 179 after subtracting 0 from 179.
Append the next digit (8) from the dividend to 179 and continue with: 1798 / 339

Advancing to step 4:
If we divide 1798 by 339, we get 5 and a remainder of 103.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 1695 from 1798 to get 103.
Bring next digit (1) of the dividend behind the 103 and repeat the process: 1031 / 339

On to step 5:
339 can be fit into 1031 3 times, resulting in a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtracting 1017 from 1031 leaves us with 14.
Fetch the next digit (6) from the dividend, attach it to 14 and continue: 146 / 339

Moving on to step 6:
The number 339 fits into 146 0 times, leaving a remainder of 146.
Put 0 as the next digit of the answer. 
Result so far: 530.0
Deduct 0 from 146 and we're left with 146.
Take the next digit (5) from the dividend and append it to 146, then repeat: 1465 / 339

Going ahead to step 7:
339 goes into 1465 4 times with a remainder of 109.
Put 4 as the next digit of the answer. 
Result so far: 5304.0
The remainder is 109 after subtracting 1356 from 1465.
Bring next digit (3) of the dividend behind the 109 and repeat the process: 1093 / 339

Moving on to step 8:
If we divide 1093 by 339, we get 3 and a remainder of 76.
Put 3 as the next digit of the answer. 
Result so far: 53043.0
Subtracting 1017 from 1093 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 9:
When dividing 760 by 339, we get 2 with a remainder of 82.
Put 2 as the next digit of the answer. 
Result so far: 53043.2
If we subtract 678 from 760, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Advancing to step 10:
820 divided by 339 is 2 with a remainder of 142.
The number 2 becomes the next digit in our result. 
Result so far: 53043.22
Subtracting 678 from 820 leaves us with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

The final outcome is 53043.22, with a leftover of 0.142.