36391019 ÷ 449 
The aim is to understand the frequency of 449 in 36391019.

Step 1:
449 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 449

On to step 2:
When dividing 36 by 449, we get 0 with a remainder of 36.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 36 leaves us with 36.
Bring next digit (3) of the dividend behind the 36 and repeat the process: 363 / 449

Step 3:
When dividing 363 by 449, we get 0 with a remainder of 363.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 363 leaves us with 363.
Bring next digit (9) of the dividend behind the 363 and repeat the process: 3639 / 449

Moving on to step 4:
449 can be fit into 3639 8 times, resulting in a remainder of 47.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 3592 away from 3639, we end up with 47.
Take the next digit (1) from the dividend and append it to 47, then repeat: 471 / 449

Moving on to step 5:
449 goes into 471 1 times with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 81.0
Subtract 449 from 471 to get 22.
Take the next digit (0) from the dividend and append it to 22, then repeat: 220 / 449

Moving on to step 6:
If we divide 220 by 449, we get 0 and a remainder of 220.
Use 0 as the next digit of our solution. 
Result so far: 810.0
Subtract 0 from 220 to get 220.
Fetch the next digit (1) from the dividend, attach it to 220 and continue: 2201 / 449

Let's proceed to step 7:
The number 449 fits into 2201 4 times, leaving a remainder of 405.
Record the quotient 4 as the next digit in the result. 
Result so far: 8104.0
If we take 1796 away from 2201, we end up with 405.
Grab the next digit (9) from the dividend, add it to 405, then carry on: 4059 / 449

Let's proceed to step 8:
When dividing 4059 by 449, we get 9 with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 81049.0
Subtract 4041 from 4059 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 9:
449 can be fit into 180 0 times, resulting in a remainder of 180.
Use 0 as the next digit of our solution. 
Result so far: 81049.0
If we take 0 away from 180, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 10:
449 goes into 1800 4 times with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 81049.04
Deduct 1796 from 1800 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 11:
If we divide 40 by 449, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 81049.04
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 12:
If we divide 400 by 449, we get 0 and a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 81049.04
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The quotient of the division is 81049.04, and the remainder is 0.004.