53301773 ÷ 278 
The aim is to understand the frequency of 278 in 53301773.

On to step 1:
When dividing 5 by 278, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 278

Advancing to step 2:
If we divide 53 by 278, we get 0 and a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Bring next digit (3) of the dividend behind the 53 and repeat the process: 533 / 278

Moving on to step 3:
278 can be fit into 533 1 times, resulting in a remainder of 255.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 255 after subtracting 278 from 533.
Grab the next digit (0) from the dividend, add it to 255, then carry on: 2550 / 278

Going ahead to step 4:
278 can be fit into 2550 9 times, resulting in a remainder of 48.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtract 2502 from 2550 to get 48.
Bring next digit (1) of the dividend behind the 48 and repeat the process: 481 / 278

Advancing to step 5:
481 divided by 278 is 1 with a remainder of 203.
Use 1 as the next digit of our solution. 
Result so far: 191.0
Deduct 278 from 481 and we're left with 203.
Grab the next digit (7) from the dividend, add it to 203, then carry on: 2037 / 278

Moving on to step 6:
278 goes into 2037 7 times with a remainder of 91.
The next digit of our result is 7. 
Result so far: 1917.0
Deduct 1946 from 2037 and we're left with 91.
Include the next digit (7) from the dividend after 91, then repeat: 917 / 278

Let's proceed to step 7:
If we divide 917 by 278, we get 3 and a remainder of 83.
Write down 3 as next digit of the result. 
Result so far: 19173.0
Subtract 834 from 917 to get 83.
Append the next digit (3) from the dividend to 83 and continue with: 833 / 278

Advancing to step 8:
If we divide 833 by 278, we get 2 and a remainder of 277.
Record the quotient 2 as the next digit in the result. 
Result so far: 191732.0
Subtract 556 from 833 to get 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Advancing to step 9:
When dividing 2770 by 278, we get 9 with a remainder of 268.
Put 9 as the next digit of the answer. 
Result so far: 191732.9
Deduct 2502 from 2770 and we're left with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Step 10:
If we divide 2680 by 278, we get 9 and a remainder of 178.
The number 9 becomes the next digit in our result. 
Result so far: 191732.99
If we take 2502 away from 2680, we end up with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

The final result is 191732.99 with a remainder of 0.178.