We're dividing 51988128 by 448 
The aim is to understand the frequency of 448 in 51988128.

Step 1:
The number 448 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 448

On to step 2:
51 divided by 448 is 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Include the next digit (9) from the dividend after 51, then repeat: 519 / 448

Let's proceed to step 3:
448 goes into 519 1 times with a remainder of 71.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 448 from 519 and we're left with 71.
Fetch the next digit (8) from the dividend, attach it to 71 and continue: 718 / 448

Let's proceed to step 4:
448 goes into 718 1 times with a remainder of 270.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 270 after subtracting 448 from 718.
Fetch the next digit (8) from the dividend, attach it to 270 and continue: 2708 / 448

Step 5:
The number 448 fits into 2708 6 times, leaving a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 116.0
Subtract 2688 from 2708 to get 20.
Grab the next digit (1) from the dividend, add it to 20, then carry on: 201 / 448

Let's proceed to step 6:
The number 448 fits into 201 0 times, leaving a remainder of 201.
The number 0 becomes the next digit in our result. 
Result so far: 1160.0
Deduct 0 from 201 and we're left with 201.
Append the next digit (2) from the dividend to 201 and continue with: 2012 / 448

Let's proceed to step 7:
448 can be fit into 2012 4 times, resulting in a remainder of 220.
Put 4 as the next digit of the answer. 
Result so far: 11604.0
Subtracting 1792 from 2012 leaves us with 220.
Fetch the next digit (8) from the dividend, attach it to 220 and continue: 2208 / 448

Let's proceed to step 8:
2208 divided by 448 is 4 with a remainder of 416.
Record the quotient 4 as the next digit in the result. 
Result so far: 116044.0
Subtracting 1792 from 2208 leaves us 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.

Advancing to step 9:
448 goes into 4160 9 times with a remainder of 128.
Use 9 as the next digit of our solution. 
Result so far: 116044.9
Deduct 4032 from 4160 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 10:
The number 448 fits into 1280 2 times, leaving a remainder of 384.
The next digit of our result is 2. 
Result so far: 116044.92
If we take 896 away from 1280, we end up 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.

Let's proceed to step 11:
3840 divided by 448 is 8 with a remainder of 256.
The next digit of our result is 8. 
Result so far: 116044.928
If we subtract 3584 from 3840, we get 256.
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 12:
448 goes into 2560 5 times with a remainder of 320.
Use 5 as the next digit of our solution. 
Result so far: 116044.9285
Deduct 2240 from 2560 and we're left 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.

Going ahead to step 13:
448 can be fit into 3200 7 times, resulting in a remainder of 64.
Use 7 as the next digit of our solution. 
Result so far: 116044.92857
The remainder is 64 after subtracting 3136 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 14:
The number 448 fits into 640 1 times, leaving a remainder of 192.
Use 1 as the next digit of our solution. 
Result so far: 116044.928571
Subtracting 448 from 640 leaves us with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Moving on to step 15:
1920 divided by 448 is 4 with a remainder of 128.
Record the quotient 4 as the next digit in the result. 
Result so far: 116044.9285714
If we subtract 1792 from 1920, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 16:
448 goes into 1280 2 times with a remainder of 384.
The next digit of our result is 2. 
Result so far: 116044.92857142
Subtract 896 from 1280 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

The final result is 116044.92857142 with a remainder of 3.84e-07.