We're dividing 18913661 by 545 
The aim is to understand the frequency of 545 in 18913661.

Going ahead to step 1:
When dividing 1 by 545, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 545

Let's proceed to step 2:
18 divided by 545 is 0 with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Take the next digit (9) from the dividend and append it to 18, then repeat: 189 / 545

Going ahead to step 3:
If we divide 189 by 545, we get 0 and a remainder of 189.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 189 to get 189.
Append the next digit (1) from the dividend to 189 and continue with: 1891 / 545

On to step 4:
545 can be fit into 1891 3 times, resulting in a remainder of 256.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 1635 from 1891 and we're left with 256.
Bring next digit (3) of the dividend behind the 256 and repeat the process: 2563 / 545

Moving on to step 5:
545 can be fit into 2563 4 times, resulting in a remainder of 383.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
Deduct 2180 from 2563 and we're left with 383.
Grab the next digit (6) from the dividend, add it to 383, then carry on: 3836 / 545

Moving on to step 6:
3836 divided by 545 is 7 with a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 347.0
If we take 3815 away from 3836, we end up with 21.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 545

On to step 7:
216 divided by 545 is 0 with a remainder of 216.
Use 0 as the next digit of our solution. 
Result so far: 3470.0
If we subtract 0 from 216, we get 216.
Fetch the next digit (1) from the dividend, attach it to 216 and continue: 2161 / 545

Step 8:
2161 divided by 545 is 3 with a remainder of 526.
The next digit of our result is 3. 
Result so far: 34703.0
Deduct 1635 from 2161 and we're left with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

On to step 9:
When dividing 5260 by 545, we get 9 with a remainder of 355.
Write down 9 as next digit of the result. 
Result so far: 34703.9
Subtracting 4905 from 5260 leaves us with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Let's proceed to step 10:
545 can be fit into 3550 6 times, resulting in a remainder of 280.
Put 6 as the next digit of the answer. 
Result so far: 34703.96
If we take 3270 away from 3550, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 11:
545 can be fit into 2800 5 times, resulting in a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 34703.965
If we take 2725 away from 2800, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 12:
When dividing 750 by 545, we get 1 with a remainder of 205.
Write down 1 as next digit of the result. 
Result so far: 34703.9651
Subtract 545 from 750 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Going ahead to step 13:
When dividing 2050 by 545, we get 3 with a remainder of 415.
The number 3 becomes the next digit in our result. 
Result so far: 34703.96513
If we subtract 1635 from 2050, we get 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Let's proceed to step 14:
The number 545 fits into 4150 7 times, leaving a remainder of 335.
The number 7 becomes the next digit in our result. 
Result so far: 34703.965137
If we take 3815 away from 4150, we end up with 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 15:
If we divide 3350 by 545, we get 6 and a remainder of 80.
The next digit of our result is 6. 
Result so far: 34703.9651376
Deduct 3270 from 3350 and we're left 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.

Let's proceed to step 16:
545 can be fit into 800 1 times, resulting in a remainder of 255.
Record the quotient 1 as the next digit in the result. 
Result so far: 34703.96513761
Subtract 545 from 800 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

The final outcome is 34703.96513761, with a leftover of 2.55e-07.