We look at the division of 9773897 by 548 
The aim is to understand the frequency of 548 in 9773897.

On to step 1:
548 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 548

On to step 2:
If we divide 97 by 548, we get 0 and a remainder of 97.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 97 and we're left with 97.
Include the next digit (7) from the dividend after 97, then repeat: 977 / 548

Step 3:
548 goes into 977 1 times with a remainder of 429.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 548 from 977 leaves us with 429.
Grab the next digit (3) from the dividend, add it to 429, then carry on: 4293 / 548

Moving on to step 4:
4293 divided by 548 is 7 with a remainder of 457.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we subtract 3836 from 4293, we get 457.
Append the next digit (8) from the dividend to 457 and continue with: 4578 / 548

Let's proceed to step 5:
4578 divided by 548 is 8 with a remainder of 194.
Record the quotient 8 as the next digit in the result. 
Result so far: 178.0
If we subtract 4384 from 4578, we get 194.
Append the next digit (9) from the dividend to 194 and continue with: 1949 / 548

Advancing to step 6:
The number 548 fits into 1949 3 times, leaving a remainder of 305.
Record the quotient 3 as the next digit in the result. 
Result so far: 1783.0
Subtracting 1644 from 1949 leaves us with 305.
Fetch the next digit (7) from the dividend, attach it to 305 and continue: 3057 / 548

Let's proceed to step 7:
If we divide 3057 by 548, we get 5 and a remainder of 317.
Put 5 as the next digit of the answer. 
Result so far: 17835.0
Subtracting 2740 from 3057 leaves us with 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

Going ahead to step 8:
548 goes into 3170 5 times with a remainder of 430.
Write down 5 as next digit of the result. 
Result so far: 17835.5
The remainder is 430 after subtracting 2740 from 3170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Let's proceed to step 9:
548 can be fit into 4300 7 times, resulting in a remainder of 464.
The next digit of our result is 7. 
Result so far: 17835.57
Deduct 3836 from 4300 and we're left with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Let's proceed to step 10:
548 can be fit into 4640 8 times, resulting in a remainder of 256.
Record the quotient 8 as the next digit in the result. 
Result so far: 17835.578
Subtract 4384 from 4640 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Moving on to step 11:
548 goes into 2560 4 times with a remainder of 368.
The number 4 becomes the next digit in our result. 
Result so far: 17835.5784
Subtract 2192 from 2560 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 12:
When dividing 3680 by 548, we get 6 with a remainder of 392.
The next digit of our result is 6. 
Result so far: 17835.57846
Subtracting 3288 from 3680 leaves us with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 13:
The number 548 fits into 3920 7 times, leaving a remainder of 84.
The number 7 becomes the next digit in our result. 
Result so far: 17835.578467
If we take 3836 away from 3920, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 14:
When dividing 840 by 548, we get 1 with a remainder of 292.
Write down 1 as next digit of the result. 
Result so far: 17835.5784671
Subtract 548 from 840 to get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

On to step 15:
548 goes into 2920 5 times with a remainder of 180.
Use 5 as the next digit of our solution. 
Result so far: 17835.57846715
The remainder is 180 after subtracting 2740 from 2920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final result is 17835.57846715 with a remainder of 1.8e-07.