We look at the division of 79893191 by 393 
The aim is to understand the frequency of 393 in 79893191.

Going ahead to step 1:
The number 393 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 393

Let's proceed to step 2:
393 goes into 79 0 times with a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 79 to get 79.
Grab the next digit (8) from the dividend, add it to 79, then carry on: 798 / 393

On to step 3:
393 can be fit into 798 2 times, resulting in a remainder of 12.
The next digit of our result is 2. 
Result so far: 2.0
If we take 786 away from 798, we end up with 12.
Include the next digit (9) from the dividend after 12, then repeat: 129 / 393

Moving on to step 4:
393 can be fit into 129 0 times, resulting in a remainder of 129.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtracting 0 from 129 leaves us with 129.
Bring next digit (3) of the dividend behind the 129 and repeat the process: 1293 / 393

Let's proceed to step 5:
The number 393 fits into 1293 3 times, leaving a remainder of 114.
The next digit of our result is 3. 
Result so far: 203.0
Deduct 1179 from 1293 and we're left with 114.
Include the next digit (1) from the dividend after 114, then repeat: 1141 / 393

Step 6:
1141 divided by 393 is 2 with a remainder of 355.
Record the quotient 2 as the next digit in the result. 
Result so far: 2032.0
The remainder is 355 after subtracting 786 from 1141.
Take the next digit (9) from the dividend and append it to 355, then repeat: 3559 / 393

Moving on to step 7:
3559 divided by 393 is 9 with a remainder of 22.
The next digit of our result is 9. 
Result so far: 20329.0
Subtract 3537 from 3559 to get 22.
Grab the next digit (1) from the dividend, add it to 22, then carry on: 221 / 393

On to step 8:
221 divided by 393 is 0 with a remainder of 221.
The number 0 becomes the next digit in our result. 
Result so far: 203290.0
The remainder is 221 after subtracting 0 from 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Let's proceed to step 9:
When dividing 2210 by 393, we get 5 with a remainder of 245.
Record the quotient 5 as the next digit in the result. 
Result so far: 203290.5
If we subtract 1965 from 2210, we get 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Going ahead to step 10:
The number 393 fits into 2450 6 times, leaving a remainder of 92.
Record the quotient 6 as the next digit in the result. 
Result so far: 203290.56
The remainder is 92 after subtracting 2358 from 2450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 11:
393 goes into 920 2 times with a remainder of 134.
Record the quotient 2 as the next digit in the result. 
Result so far: 203290.562
Subtracting 786 from 920 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Step 12:
The number 393 fits into 1340 3 times, leaving a remainder of 161.
Use 3 as the next digit of our solution. 
Result so far: 203290.5623
The remainder is 161 after subtracting 1179 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Let's proceed to step 13:
1610 divided by 393 is 4 with a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 203290.56234
If we subtract 1572 from 1610, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 14:
393 can be fit into 380 0 times, resulting in a remainder of 380.
Use 0 as the next digit of our solution. 
Result so far: 203290.56234
If we take 0 away from 380, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 15:
393 can be fit into 3800 9 times, resulting in a remainder of 263.
The number 9 becomes the next digit in our result. 
Result so far: 203290.5623409
The remainder is 263 after subtracting 3537 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Step 16:
2630 divided by 393 is 6 with a remainder of 272.
The next digit of our result is 6. 
Result so far: 203290.56234096
If we take 2358 away from 2630, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

The quotient of the division is 203290.56234096, and the remainder is 2.72e-07.