We divide 42640648 by 450
The aim is to understand the frequency of 450 in 42640648.

On to step 1:
When dividing 4 by 450, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 450

Let's proceed to step 2:
450 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Grab the next digit (6) from the dividend, add it to 42, then carry on: 426 / 450

Moving on to step 3:
When dividing 426 by 450, we get 0 with a remainder of 426.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 426 leaves us with 426.
Take the next digit (4) from the dividend and append it to 426, then repeat: 4264 / 450

Advancing to step 4:
When dividing 4264 by 450, we get 9 with a remainder of 214.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 4050 from 4264, we get 214.
Grab the next digit (0) from the dividend, add it to 214, then carry on: 2140 / 450

Step 5:
The number 450 fits into 2140 4 times, leaving a remainder of 340.
Put 4 as the next digit of the answer. 
Result so far: 94.0
If we take 1800 away from 2140, we end up with 340.
Fetch the next digit (6) from the dividend, attach it to 340 and continue: 3406 / 450

Going ahead to step 6:
450 can be fit into 3406 7 times, resulting in a remainder of 256.
Record the quotient 7 as the next digit in the result. 
Result so far: 947.0
If we subtract 3150 from 3406, we get 256.
Grab the next digit (4) from the dividend, add it to 256, then carry on: 2564 / 450

Step 7:
The number 450 fits into 2564 5 times, leaving a remainder of 314.
Record the quotient 5 as the next digit in the result. 
Result so far: 9475.0
Subtracting 2250 from 2564 leaves us with 314.
Fetch the next digit (8) from the dividend, attach it to 314 and continue: 3148 / 450

Step 8:
When dividing 3148 by 450, we get 6 with a remainder of 448.
Record the quotient 6 as the next digit in the result. 
Result so far: 94756.0
The remainder is 448 after subtracting 2700 from 3148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Let's proceed to step 9:
4480 divided by 450 is 9 with a remainder of 430.
The next digit of our result is 9. 
Result so far: 94756.9
Deduct 4050 from 4480 and we're left with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Moving on to step 10:
450 can be fit into 4300 9 times, resulting in a remainder of 250.
The number 9 becomes the next digit in our result. 
Result so far: 94756.99
Subtracting 4050 from 4300 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

The final result is 94756.99 with a remainder of 0.25.