We look at the division of 33221257 by 448 
The aim is to understand the frequency of 448 in 33221257.

Advancing to step 1:
When dividing 3 by 448, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 448

Moving on to step 2:
The number 448 fits into 33 0 times, leaving a remainder of 33.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 33 after subtracting 0 from 33.
Bring next digit (2) of the dividend behind the 33 and repeat the process: 332 / 448

Let's proceed to step 3:
The number 448 fits into 332 0 times, leaving a remainder of 332.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 332, we get 332.
Append the next digit (2) from the dividend to 332 and continue with: 3322 / 448

Advancing to step 4:
448 goes into 3322 7 times with a remainder of 186.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 3136 from 3322 to get 186.
Fetch the next digit (1) from the dividend, attach it to 186 and continue: 1861 / 448

Step 5:
448 can be fit into 1861 4 times, resulting in a remainder of 69.
Write down 4 as next digit of the result. 
Result so far: 74.0
Subtract 1792 from 1861 to get 69.
Append the next digit (2) from the dividend to 69 and continue with: 692 / 448

Step 6:
448 goes into 692 1 times with a remainder of 244.
Write down 1 as next digit of the result. 
Result so far: 741.0
If we subtract 448 from 692, we get 244.
Append the next digit (5) from the dividend to 244 and continue with: 2445 / 448

Step 7:
2445 divided by 448 is 5 with a remainder of 205.
The next digit of our result is 5. 
Result so far: 7415.0
If we subtract 2240 from 2445, we get 205.
Bring next digit (7) of the dividend behind the 205 and repeat the process: 2057 / 448

Moving on to step 8:
448 goes into 2057 4 times with a remainder of 265.
Use 4 as the next digit of our solution. 
Result so far: 74154.0
The remainder is 265 after subtracting 1792 from 2057.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

On to step 9:
The number 448 fits into 2650 5 times, leaving a remainder of 410.
The next digit of our result is 5. 
Result so far: 74154.5
If we subtract 2240 from 2650, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 10:
When dividing 4100 by 448, we get 9 with a remainder of 68.
The number 9 becomes the next digit in our result. 
Result so far: 74154.59
Subtract 4032 from 4100 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 11:
The number 448 fits into 680 1 times, leaving a remainder of 232.
Use 1 as the next digit of our solution. 
Result so far: 74154.591
Deduct 448 from 680 and we're left with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Going ahead to step 12:
If we divide 2320 by 448, we get 5 and a remainder of 80.
Put 5 as the next digit of the answer. 
Result so far: 74154.5915
If we subtract 2240 from 2320, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 13:
800 divided by 448 is 1 with a remainder of 352.
Put 1 as the next digit of the answer. 
Result so far: 74154.59151
The remainder is 352 after subtracting 448 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

On to step 14:
448 goes into 3520 7 times with a remainder of 384.
The next digit of our result is 7. 
Result so far: 74154.591517
Subtracting 3136 from 3520 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 15:
If we divide 3840 by 448, we get 8 and a remainder of 256.
Put 8 as the next digit of the answer. 
Result so far: 74154.5915178
The remainder is 256 after subtracting 3584 from 3840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 16:
448 can be fit into 2560 5 times, resulting in a remainder of 320.
Write down 5 as next digit of the result. 
Result so far: 74154.59151785
Subtracting 2240 from 2560 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Our division results in 74154.59151785 with a remaining 3.2e-07.