We're dividing 16063949 by 449 
The aim is to understand the frequency of 449 in 16063949.

On to step 1:
The number 449 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 449

Advancing to step 2:
When dividing 16 by 449, we get 0 with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Include the next digit (0) from the dividend after 16, then repeat: 160 / 449

Moving on to step 3:
449 can be fit into 160 0 times, resulting in a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 160 after subtracting 0 from 160.
Include the next digit (6) from the dividend after 160, then repeat: 1606 / 449

Going ahead to step 4:
449 goes into 1606 3 times with a remainder of 259.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 1347 from 1606 and we're left with 259.
Take the next digit (3) from the dividend and append it to 259, then repeat: 2593 / 449

Let's proceed to step 5:
The number 449 fits into 2593 5 times, leaving a remainder of 348.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Deduct 2245 from 2593 and we're left with 348.
Bring next digit (9) of the dividend behind the 348 and repeat the process: 3489 / 449

Advancing to step 6:
If we divide 3489 by 449, we get 7 and a remainder of 346.
The next digit of our result is 7. 
Result so far: 357.0
Deduct 3143 from 3489 and we're left with 346.
Grab the next digit (4) from the dividend, add it to 346, then carry on: 3464 / 449

Going ahead to step 7:
When dividing 3464 by 449, we get 7 with a remainder of 321.
Record the quotient 7 as the next digit in the result. 
Result so far: 3577.0
Subtracting 3143 from 3464 leaves us with 321.
Grab the next digit (9) from the dividend, add it to 321, then carry on: 3219 / 449

Going ahead to step 8:
If we divide 3219 by 449, we get 7 and a remainder of 76.
Put 7 as the next digit of the answer. 
Result so far: 35777.0
Deduct 3143 from 3219 and we're left 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.

Advancing to step 9:
760 divided by 449 is 1 with a remainder of 311.
Put 1 as the next digit of the answer. 
Result so far: 35777.1
The remainder is 311 after subtracting 449 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Moving on to step 10:
3110 divided by 449 is 6 with a remainder of 416.
Use 6 as the next digit of our solution. 
Result so far: 35777.16
Deduct 2694 from 3110 and we're left with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Let's proceed to step 11:
4160 divided by 449 is 9 with a remainder of 119.
Put 9 as the next digit of the answer. 
Result so far: 35777.169
Deduct 4041 from 4160 and we're left with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

On to step 12:
When dividing 1190 by 449, we get 2 with a remainder of 292.
Put 2 as the next digit of the answer. 
Result so far: 35777.1692
The remainder is 292 after subtracting 898 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 13:
When dividing 2920 by 449, we get 6 with a remainder of 226.
The number 6 becomes the next digit in our result. 
Result so far: 35777.16926
Deduct 2694 from 2920 and we're left with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Advancing to step 14:
If we divide 2260 by 449, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 35777.169265
If we take 2245 away from 2260, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 15:
449 can be fit into 150 0 times, resulting in a remainder of 150.
The next digit of our result is 0. 
Result so far: 35777.169265
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 16:
If we divide 1500 by 449, we get 3 and a remainder of 153.
Record the quotient 3 as the next digit in the result. 
Result so far: 35777.16926503
If we take 1347 away from 1500, we end up with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

The final result is 35777.16926503 with a remainder of 1.53e-07.