Let's divide 13620143 by 393
The aim is to understand the frequency of 393 in 13620143.

Going ahead to step 1:
393 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
Deduct 0 from 1 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 393

Advancing to step 2:
393 goes into 13 0 times with a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Fetch the next digit (6) from the dividend, attach it to 13 and continue: 136 / 393

Going ahead to step 3:
393 can be fit into 136 0 times, resulting in a remainder of 136.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 136 and we're left with 136.
Grab the next digit (2) from the dividend, add it to 136, then carry on: 1362 / 393

Moving on to step 4:
393 goes into 1362 3 times with a remainder of 183.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 183 after subtracting 1179 from 1362.
Fetch the next digit (0) from the dividend, attach it to 183 and continue: 1830 / 393

On to step 5:
The number 393 fits into 1830 4 times, leaving a remainder of 258.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
Subtract 1572 from 1830 to get 258.
Include the next digit (1) from the dividend after 258, then repeat: 2581 / 393

Advancing to step 6:
When dividing 2581 by 393, we get 6 with a remainder of 223.
The next digit of our result is 6. 
Result so far: 346.0
Deduct 2358 from 2581 and we're left with 223.
Fetch the next digit (4) from the dividend, attach it to 223 and continue: 2234 / 393

Advancing to step 7:
The number 393 fits into 2234 5 times, leaving a remainder of 269.
Write down 5 as next digit of the result. 
Result so far: 3465.0
The remainder is 269 after subtracting 1965 from 2234.
Fetch the next digit (3) from the dividend, attach it to 269 and continue: 2693 / 393

Let's proceed to step 8:
The number 393 fits into 2693 6 times, leaving a remainder of 335.
The number 6 becomes the next digit in our result. 
Result so far: 34656.0
Subtract 2358 from 2693 to 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:
When dividing 3350 by 393, we get 8 with a remainder of 206.
The next digit of our result is 8. 
Result so far: 34656.8
Subtract 3144 from 3350 to get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Let's proceed to step 10:
The number 393 fits into 2060 5 times, leaving a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 34656.85
Deduct 1965 from 2060 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 11:
393 can be fit into 950 2 times, resulting in a remainder of 164.
Record the quotient 2 as the next digit in the result. 
Result so far: 34656.852
Subtracting 786 from 950 leaves us with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Advancing to step 12:
393 goes into 1640 4 times with a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 34656.8524
If we take 1572 away from 1640, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 13:
393 goes into 680 1 times with a remainder of 287.
Put 1 as the next digit of the answer. 
Result so far: 34656.85241
Deduct 393 from 680 and we're left with 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Moving on to step 14:
2870 divided by 393 is 7 with a remainder of 119.
The next digit of our result is 7. 
Result so far: 34656.852417
Deduct 2751 from 2870 and we're left with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 15:
The number 393 fits into 1190 3 times, leaving a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 34656.8524173
Deduct 1179 from 1190 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 16:
393 can be fit into 110 0 times, resulting in a remainder of 110.
Put 0 as the next digit of the answer. 
Result so far: 34656.8524173
Subtracting 0 from 110 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

The final outcome is 34656.8524173, with a leftover of 1.1e-07.