We're dividing 91520484 by 386 
The aim is to understand the frequency of 386 in 91520484.

Step 1:
If we divide 9 by 386, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 386

Step 2:
If we divide 91 by 386, we get 0 and a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Bring next digit (5) of the dividend behind the 91 and repeat the process: 915 / 386

Advancing to step 3:
915 divided by 386 is 2 with a remainder of 143.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 772 from 915 to get 143.
Fetch the next digit (2) from the dividend, attach it to 143 and continue: 1432 / 386

Moving on to step 4:
If we divide 1432 by 386, we get 3 and a remainder of 274.
Put 3 as the next digit of the answer. 
Result so far: 23.0
If we subtract 1158 from 1432, we get 274.
Append the next digit (0) from the dividend to 274 and continue with: 2740 / 386

Going ahead to step 5:
386 goes into 2740 7 times with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 237.0
Subtracting 2702 from 2740 leaves us with 38.
Bring next digit (4) of the dividend behind the 38 and repeat the process: 384 / 386

On to step 6:
When dividing 384 by 386, we get 0 with a remainder of 384.
Put 0 as the next digit of the answer. 
Result so far: 2370.0
The remainder is 384 after subtracting 0 from 384.
Bring next digit (8) of the dividend behind the 384 and repeat the process: 3848 / 386

Step 7:
386 goes into 3848 9 times with a remainder of 374.
The next digit of our result is 9. 
Result so far: 23709.0
Subtracting 3474 from 3848 leaves us with 374.
Append the next digit (4) from the dividend to 374 and continue with: 3744 / 386

On to step 8:
When dividing 3744 by 386, we get 9 with a remainder of 270.
The number 9 becomes the next digit in our result. 
Result so far: 237099.0
The remainder is 270 after subtracting 3474 from 3744.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Going ahead to step 9:
386 can be fit into 2700 6 times, resulting in a remainder of 384.
Use 6 as the next digit of our solution. 
Result so far: 237099.6
Deduct 2316 from 2700 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Moving on to step 10:
The number 386 fits into 3840 9 times, leaving a remainder of 366.
Use 9 as the next digit of our solution. 
Result so far: 237099.69
Subtracting 3474 from 3840 leaves us with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Moving on to step 11:
3660 divided by 386 is 9 with a remainder of 186.
Use 9 as the next digit of our solution. 
Result so far: 237099.699
The remainder is 186 after subtracting 3474 from 3660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

The quotient of the division is 237099.699, and the remainder is 0.0186.