77447253 ÷ 450 
The aim is to understand the frequency of 450 in 77447253.

Moving on to step 1:
The number 450 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 450

Advancing to step 2:
The number 450 fits into 77 0 times, leaving a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Bring next digit (4) of the dividend behind the 77 and repeat the process: 774 / 450

Advancing to step 3:
If we divide 774 by 450, we get 1 and a remainder of 324.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 450 from 774 leaves us with 324.
Take the next digit (4) from the dividend and append it to 324, then repeat: 3244 / 450

Step 4:
450 goes into 3244 7 times with a remainder of 94.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we take 3150 away from 3244, we end up with 94.
Append the next digit (7) from the dividend to 94 and continue with: 947 / 450

On to step 5:
947 divided by 450 is 2 with a remainder of 47.
Record the quotient 2 as the next digit in the result. 
Result so far: 172.0
Subtract 900 from 947 to get 47.
Take the next digit (2) from the dividend and append it to 47, then repeat: 472 / 450

Going ahead to step 6:
When dividing 472 by 450, we get 1 with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1721.0
Deduct 450 from 472 and we're left with 22.
Bring next digit (5) of the dividend behind the 22 and repeat the process: 225 / 450

Let's proceed to step 7:
225 divided by 450 is 0 with a remainder of 225.
The next digit of our result is 0. 
Result so far: 17210.0
Deduct 0 from 225 and we're left with 225.
Fetch the next digit (3) from the dividend, attach it to 225 and continue: 2253 / 450

Moving on to step 8:
2253 divided by 450 is 5 with a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 172105.0
Subtract 2250 from 2253 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
When dividing 30 by 450, we get 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 172105.0
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
When dividing 300 by 450, we get 0 with a remainder of 300.
Write down 0 as next digit of the result. 
Result so far: 172105.0
Subtracting 0 from 300 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The quotient of the division is 172105.0, and the remainder is 0.3.