90071507 ÷ 448 
The aim is to understand the frequency of 448 in 90071507.

On to step 1:
448 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 448

Going ahead to step 2:
The number 448 fits into 90 0 times, leaving a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Grab the next digit (0) from the dividend, add it to 90, then carry on: 900 / 448

Let's proceed to step 3:
When dividing 900 by 448, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 896 away from 900, we end up with 4.
Fetch the next digit (7) from the dividend, attach it to 4 and continue: 47 / 448

Moving on to step 4:
448 can be fit into 47 0 times, resulting in a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtract 0 from 47 to get 47.
Take the next digit (1) from the dividend and append it to 47, then repeat: 471 / 448

Let's proceed to step 5:
When dividing 471 by 448, we get 1 with a remainder of 23.
The next digit of our result is 1. 
Result so far: 201.0
Subtracting 448 from 471 leaves us with 23.
Append the next digit (5) from the dividend to 23 and continue with: 235 / 448

On to step 6:
235 divided by 448 is 0 with a remainder of 235.
Record the quotient 0 as the next digit in the result. 
Result so far: 2010.0
Subtract 0 from 235 to get 235.
Fetch the next digit (0) from the dividend, attach it to 235 and continue: 2350 / 448

Moving on to step 7:
If we divide 2350 by 448, we get 5 and a remainder of 110.
The number 5 becomes the next digit in our result. 
Result so far: 20105.0
Subtracting 2240 from 2350 leaves us with 110.
Include the next digit (7) from the dividend after 110, then repeat: 1107 / 448

Advancing to step 8:
448 can be fit into 1107 2 times, resulting in a remainder of 211.
Put 2 as the next digit of the answer. 
Result so far: 201052.0
Deduct 896 from 1107 and we're left with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

On to step 9:
2110 divided by 448 is 4 with a remainder of 318.
Record the quotient 4 as the next digit in the result. 
Result so far: 201052.4
Deduct 1792 from 2110 and we're left with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Going ahead to step 10:
448 goes into 3180 7 times with a remainder of 44.
The number 7 becomes the next digit in our result. 
Result so far: 201052.47
If we take 3136 away from 3180, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 11:
If we divide 440 by 448, we get 0 and a remainder of 440.
Use 0 as the next digit of our solution. 
Result so far: 201052.47
The remainder is 440 after subtracting 0 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 12:
When dividing 4400 by 448, we get 9 with a remainder of 368.
Record the quotient 9 as the next digit in the result. 
Result so far: 201052.4709
The remainder is 368 after subtracting 4032 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Advancing to step 13:
If we divide 3680 by 448, we get 8 and a remainder of 96.
Use 8 as the next digit of our solution. 
Result so far: 201052.47098
Deduct 3584 from 3680 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 14:
448 can be fit into 960 2 times, resulting in a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 201052.470982
Subtract 896 from 960 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 15:
The number 448 fits into 640 1 times, leaving a remainder of 192.
The next digit of our result is 1. 
Result so far: 201052.4709821
If we subtract 448 from 640, we get 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 16:
448 goes into 1920 4 times with a remainder of 128.
Record the quotient 4 as the next digit in the result. 
Result so far: 201052.47098214
Subtracting 1792 from 1920 leaves us 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.

The quotient of the division is 201052.47098214, and the remainder is 1.28e-07.