Let's divide 54860903 by 450
The aim is to understand the frequency of 450 in 54860903.

Moving on to step 1:
When dividing 5 by 450, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 450

Let's proceed to step 2:
450 goes into 54 0 times with a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 54 to get 54.
Include the next digit (8) from the dividend after 54, then repeat: 548 / 450

Going ahead to step 3:
450 can be fit into 548 1 times, resulting in a remainder of 98.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 450 from 548 to get 98.
Bring next digit (6) of the dividend behind the 98 and repeat the process: 986 / 450

On to step 4:
450 can be fit into 986 2 times, resulting in a remainder of 86.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 900 from 986 to get 86.
Grab the next digit (0) from the dividend, add it to 86, then carry on: 860 / 450

On to step 5:
450 can be fit into 860 1 times, resulting in a remainder of 410.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
If we take 450 away from 860, we end up with 410.
Take the next digit (9) from the dividend and append it to 410, then repeat: 4109 / 450

On to step 6:
If we divide 4109 by 450, we get 9 and a remainder of 59.
Put 9 as the next digit of the answer. 
Result so far: 1219.0
Deduct 4050 from 4109 and we're left with 59.
Include the next digit (0) from the dividend after 59, then repeat: 590 / 450

On to step 7:
If we divide 590 by 450, we get 1 and a remainder of 140.
The next digit of our result is 1. 
Result so far: 12191.0
Deduct 450 from 590 and we're left with 140.
Grab the next digit (3) from the dividend, add it to 140, then carry on: 1403 / 450

On to step 8:
1403 divided by 450 is 3 with a remainder of 53.
The next digit of our result is 3. 
Result so far: 121913.0
The remainder is 53 after subtracting 1350 from 1403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 9:
When dividing 530 by 450, we get 1 with a remainder of 80.
Use 1 as the next digit of our solution. 
Result so far: 121913.1
If we take 450 away from 530, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 10:
The number 450 fits into 800 1 times, leaving a remainder of 350.
The number 1 becomes the next digit in our result. 
Result so far: 121913.11
If we subtract 450 from 800, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

The quotient of the division is 121913.11, and the remainder is 0.35.