We're dividing 393645 by 93 
The aim is to understand the frequency of 93 in 393645.

Advancing to step 1:
When dividing 3 by 93, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 93

On to step 2:
If we divide 39 by 93, we get 0 and a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Append the next digit (3) from the dividend to 39 and continue with: 393 / 93

Going ahead to step 3:
93 goes into 393 4 times with a remainder of 21.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 372 away from 393, we end up with 21.
Append the next digit (6) from the dividend to 21 and continue with: 216 / 93

Advancing to step 4:
If we divide 216 by 93, we get 2 and a remainder of 30.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Deduct 186 from 216 and we're left with 30.
Append the next digit (4) from the dividend to 30 and continue with: 304 / 93

Advancing to step 5:
The number 93 fits into 304 3 times, leaving a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 423.0
Subtracting 279 from 304 leaves us with 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 93

Step 6:
The number 93 fits into 255 2 times, leaving a remainder of 69.
Put 2 as the next digit of the answer. 
Result so far: 4232.0
Subtract 186 from 255 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 7:
690 divided by 93 is 7 with a remainder of 39.
The next digit of our result is 7. 
Result so far: 4232.7
If we subtract 651 from 690, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 8:
390 divided by 93 is 4 with a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 4232.74
The remainder is 18 after subtracting 372 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
When dividing 180 by 93, we get 1 with a remainder of 87.
Put 1 as the next digit of the answer. 
Result so far: 4232.741
The remainder is 87 after subtracting 93 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 10:
The number 93 fits into 870 9 times, leaving a remainder of 33.
Record the quotient 9 as the next digit in the result. 
Result so far: 4232.7419
Deduct 837 from 870 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 11:
When dividing 330 by 93, we get 3 with a remainder of 51.
The number 3 becomes the next digit in our result. 
Result so far: 4232.74193
If we take 279 away from 330, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 12:
93 can be fit into 510 5 times, resulting in a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 4232.741935
If we take 465 away from 510, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 13:
If we divide 450 by 93, we get 4 and a remainder of 78.
The next digit of our result is 4. 
Result so far: 4232.7419354
If we take 372 away from 450, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 14:
When dividing 780 by 93, we get 8 with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 4232.74193548
The remainder is 36 after subtracting 744 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

After the division, we end up with 4232.74193548 and a remainder of 3.6e-08.