We're dividing 19877680 by 745 
The aim is to understand the frequency of 745 in 19877680.

Moving on to step 1:
745 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 745

Going ahead to step 2:
If we divide 19 by 745, we get 0 and a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 19 to get 19.
Append the next digit (8) from the dividend to 19 and continue with: 198 / 745

Step 3:
198 divided by 745 is 0 with a remainder of 198.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 198 after subtracting 0 from 198.
Append the next digit (7) from the dividend to 198 and continue with: 1987 / 745

On to step 4:
745 can be fit into 1987 2 times, resulting in a remainder of 497.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 1490 from 1987, we get 497.
Fetch the next digit (7) from the dividend, attach it to 497 and continue: 4977 / 745

Moving on to step 5:
745 can be fit into 4977 6 times, resulting in a remainder of 507.
Put 6 as the next digit of the answer. 
Result so far: 26.0
If we take 4470 away from 4977, we end up with 507.
Append the next digit (6) from the dividend to 507 and continue with: 5076 / 745

Moving on to step 6:
5076 divided by 745 is 6 with a remainder of 606.
The number 6 becomes the next digit in our result. 
Result so far: 266.0
Subtract 4470 from 5076 to get 606.
Include the next digit (8) from the dividend after 606, then repeat: 6068 / 745

On to step 7:
If we divide 6068 by 745, we get 8 and a remainder of 108.
The next digit of our result is 8. 
Result so far: 2668.0
If we take 5960 away from 6068, we end up with 108.
Fetch the next digit (0) from the dividend, attach it to 108 and continue: 1080 / 745

Let's proceed to step 8:
745 goes into 1080 1 times with a remainder of 335.
Put 1 as the next digit of the answer. 
Result so far: 26681.0
If we subtract 745 from 1080, we get 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Step 9:
The number 745 fits into 3350 4 times, leaving a remainder of 370.
Write down 4 as next digit of the result. 
Result so far: 26681.4
Subtract 2980 from 3350 to get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 10:
745 goes into 3700 4 times with a remainder of 720.
The number 4 becomes the next digit in our result. 
Result so far: 26681.44
If we take 2980 away from 3700, we end up with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

After the division, we end up with 26681.44 and a remainder of 0.72.