We're dividing 12199885 by 609 
The aim is to understand the frequency of 609 in 12199885.

Going ahead to step 1:
609 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 609

Advancing to step 2:
609 can be fit into 12 0 times, resulting in a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 609

Going ahead to step 3:
The number 609 fits into 121 0 times, leaving a remainder of 121.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 121 and we're left with 121.
Take the next digit (9) from the dividend and append it to 121, then repeat: 1219 / 609

Advancing to step 4:
When dividing 1219 by 609, we get 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 1218 from 1219 leaves us with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 609

Advancing to step 5:
The number 609 fits into 19 0 times, leaving a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Deduct 0 from 19 and we're left with 19.
Take the next digit (8) from the dividend and append it to 19, then repeat: 198 / 609

On to step 6:
609 goes into 198 0 times with a remainder of 198.
The number 0 becomes the next digit in our result. 
Result so far: 200.0
Deduct 0 from 198 and we're left with 198.
Bring next digit (8) of the dividend behind the 198 and repeat the process: 1988 / 609

Moving on to step 7:
The number 609 fits into 1988 3 times, leaving a remainder of 161.
Use 3 as the next digit of our solution. 
Result so far: 2003.0
Subtract 1827 from 1988 to get 161.
Include the next digit (5) from the dividend after 161, then repeat: 1615 / 609

Let's proceed to step 8:
609 can be fit into 1615 2 times, resulting in a remainder of 397.
The next digit of our result is 2. 
Result so far: 20032.0
Deduct 1218 from 1615 and we're left with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

On to step 9:
The number 609 fits into 3970 6 times, leaving a remainder of 316.
The number 6 becomes the next digit in our result. 
Result so far: 20032.6
The remainder is 316 after subtracting 3654 from 3970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Going ahead to step 10:
609 goes into 3160 5 times with a remainder of 115.
Record the quotient 5 as the next digit in the result. 
Result so far: 20032.65
The remainder is 115 after subtracting 3045 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 11:
If we divide 1150 by 609, we get 1 and a remainder of 541.
Record the quotient 1 as the next digit in the result. 
Result so far: 20032.651
Subtract 609 from 1150 to get 541.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5410, and continue the process.

Going ahead to step 12:
If we divide 5410 by 609, we get 8 and a remainder of 538.
Record the quotient 8 as the next digit in the result. 
Result so far: 20032.6518
Subtracting 4872 from 5410 leaves us with 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Advancing to step 13:
609 can be fit into 5380 8 times, resulting in a remainder of 508.
Use 8 as the next digit of our solution. 
Result so far: 20032.65188
If we subtract 4872 from 5380, we get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

The final outcome is 20032.65188, with a leftover of 0.000508.