We look at the division of 98513188 by 388 
The aim is to understand the frequency of 388 in 98513188.

Going ahead to step 1:
If we divide 9 by 388, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 388

Step 2:
If we divide 98 by 388, we get 0 and a remainder of 98.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 98 to get 98.
Grab the next digit (5) from the dividend, add it to 98, then carry on: 985 / 388

Moving on to step 3:
When dividing 985 by 388, we get 2 with a remainder of 209.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 209 after subtracting 776 from 985.
Take the next digit (1) from the dividend and append it to 209, then repeat: 2091 / 388

Moving on to step 4:
If we divide 2091 by 388, we get 5 and a remainder of 151.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Deduct 1940 from 2091 and we're left with 151.
Take the next digit (3) from the dividend and append it to 151, then repeat: 1513 / 388

Step 5:
388 goes into 1513 3 times with a remainder of 349.
The number 3 becomes the next digit in our result. 
Result so far: 253.0
Subtracting 1164 from 1513 leaves us with 349.
Include the next digit (1) from the dividend after 349, then repeat: 3491 / 388

Advancing to step 6:
If we divide 3491 by 388, we get 8 and a remainder of 387.
The next digit of our result is 8. 
Result so far: 2538.0
If we subtract 3104 from 3491, we get 387.
Append the next digit (8) from the dividend to 387 and continue with: 3878 / 388

Going ahead to step 7:
If we divide 3878 by 388, we get 9 and a remainder of 386.
Use 9 as the next digit of our solution. 
Result so far: 25389.0
Subtract 3492 from 3878 to get 386.
Grab the next digit (8) from the dividend, add it to 386, then carry on: 3868 / 388

Let's proceed to step 8:
If we divide 3868 by 388, we get 9 and a remainder of 376.
The next digit of our result is 9. 
Result so far: 253899.0
If we subtract 3492 from 3868, we get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Let's proceed to step 9:
388 can be fit into 3760 9 times, resulting in a remainder of 268.
The number 9 becomes the next digit in our result. 
Result so far: 253899.9
The remainder is 268 after subtracting 3492 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 10:
The number 388 fits into 2680 6 times, leaving a remainder of 352.
Put 6 as the next digit of the answer. 
Result so far: 253899.96
If we take 2328 away from 2680, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 11:
388 can be fit into 3520 9 times, resulting in a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 253899.969
If we take 3492 away from 3520, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 12:
280 divided by 388 is 0 with a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 253899.969
Subtracting 0 from 280 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 13:
The number 388 fits into 2800 7 times, leaving a remainder of 84.
Record the quotient 7 as the next digit in the result. 
Result so far: 253899.96907
Subtract 2716 from 2800 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 14:
840 divided by 388 is 2 with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 253899.969072
If we subtract 776 from 840, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 15:
If we divide 640 by 388, we get 1 and a remainder of 252.
The next digit of our result is 1. 
Result so far: 253899.9690721
If we subtract 388 from 640, we get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Let's proceed to step 16:
2520 divided by 388 is 6 with a remainder of 192.
The next digit of our result is 6. 
Result so far: 253899.96907216
Deduct 2328 from 2520 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

The quotient of the division is 253899.96907216, and the remainder is 1.92e-07.