We divide 31186383 by 393
The aim is to understand the frequency of 393 in 31186383.

Advancing to step 1:
3 divided by 393 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 393

Let's proceed to step 2:
393 goes into 31 0 times with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Include the next digit (1) from the dividend after 31, then repeat: 311 / 393

Advancing to step 3:
311 divided by 393 is 0 with a remainder of 311.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 311 leaves us with 311.
Take the next digit (8) from the dividend and append it to 311, then repeat: 3118 / 393

Let's proceed to step 4:
393 can be fit into 3118 7 times, resulting in a remainder of 367.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 2751 from 3118 and we're left with 367.
Append the next digit (6) from the dividend to 367 and continue with: 3676 / 393

Advancing to step 5:
The number 393 fits into 3676 9 times, leaving a remainder of 139.
The next digit of our result is 9. 
Result so far: 79.0
The remainder is 139 after subtracting 3537 from 3676.
Append the next digit (3) from the dividend to 139 and continue with: 1393 / 393

Let's proceed to step 6:
If we divide 1393 by 393, we get 3 and a remainder of 214.
The next digit of our result is 3. 
Result so far: 793.0
Subtract 1179 from 1393 to get 214.
Bring next digit (8) of the dividend behind the 214 and repeat the process: 2148 / 393

Let's proceed to step 7:
If we divide 2148 by 393, we get 5 and a remainder of 183.
Write down 5 as next digit of the result. 
Result so far: 7935.0
Subtracting 1965 from 2148 leaves us with 183.
Take the next digit (3) from the dividend and append it to 183, then repeat: 1833 / 393

Going ahead to step 8:
The number 393 fits into 1833 4 times, leaving a remainder of 261.
Put 4 as the next digit of the answer. 
Result so far: 79354.0
The remainder is 261 after subtracting 1572 from 1833.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

Advancing to step 9:
393 can be fit into 2610 6 times, resulting in a remainder of 252.
The number 6 becomes the next digit in our result. 
Result so far: 79354.6
Deduct 2358 from 2610 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Moving on to step 10:
The number 393 fits into 2520 6 times, leaving a remainder of 162.
The next digit of our result is 6. 
Result so far: 79354.66
If we take 2358 away from 2520, we end up with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

The final result is 79354.66 with a remainder of 0.162.