Let's divide 21117752 by 387
The aim is to understand the frequency of 387 in 21117752.

Let's proceed to step 1:
2 divided by 387 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 387

Step 2:
387 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (1) from the dividend after 21, then repeat: 211 / 387

Going ahead to step 3:
The number 387 fits into 211 0 times, leaving a remainder of 211.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 211 after subtracting 0 from 211.
Grab the next digit (1) from the dividend, add it to 211, then carry on: 2111 / 387

Step 4:
The number 387 fits into 2111 5 times, leaving a remainder of 176.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 1935 from 2111, we get 176.
Grab the next digit (7) from the dividend, add it to 176, then carry on: 1767 / 387

Step 5:
When dividing 1767 by 387, we get 4 with a remainder of 219.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we take 1548 away from 1767, we end up with 219.
Grab the next digit (7) from the dividend, add it to 219, then carry on: 2197 / 387

Moving on to step 6:
If we divide 2197 by 387, we get 5 and a remainder of 262.
Record the quotient 5 as the next digit in the result. 
Result so far: 545.0
The remainder is 262 after subtracting 1935 from 2197.
Grab the next digit (5) from the dividend, add it to 262, then carry on: 2625 / 387

Let's proceed to step 7:
When dividing 2625 by 387, we get 6 with a remainder of 303.
The number 6 becomes the next digit in our result. 
Result so far: 5456.0
If we subtract 2322 from 2625, we get 303.
Fetch the next digit (2) from the dividend, attach it to 303 and continue: 3032 / 387

Let's proceed to step 8:
The number 387 fits into 3032 7 times, leaving a remainder of 323.
The next digit of our result is 7. 
Result so far: 54567.0
If we take 2709 away from 3032, we end up with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Step 9:
3230 divided by 387 is 8 with a remainder of 134.
Record the quotient 8 as the next digit in the result. 
Result so far: 54567.8
Subtracting 3096 from 3230 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.

Advancing to step 10:
1340 divided by 387 is 3 with a remainder of 179.
Record the quotient 3 as the next digit in the result. 
Result so far: 54567.83
The remainder is 179 after subtracting 1161 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Let's proceed to step 11:
387 goes into 1790 4 times with a remainder of 242.
Record the quotient 4 as the next digit in the result. 
Result so far: 54567.834
Deduct 1548 from 1790 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Step 12:
The number 387 fits into 2420 6 times, leaving a remainder of 98.
Record the quotient 6 as the next digit in the result. 
Result so far: 54567.8346
If we take 2322 away from 2420, we end up with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

On to step 13:
387 goes into 980 2 times with a remainder of 206.
Use 2 as the next digit of our solution. 
Result so far: 54567.83462
If we subtract 774 from 980, we 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.

Moving on to step 14:
387 can be fit into 2060 5 times, resulting in a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 54567.834625
Subtract 1935 from 2060 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 15:
When dividing 1250 by 387, we get 3 with a remainder of 89.
The number 3 becomes the next digit in our result. 
Result so far: 54567.8346253
If we take 1161 away from 1250, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Let's proceed to step 16:
387 goes into 890 2 times with a remainder of 116.
Record the quotient 2 as the next digit in the result. 
Result so far: 54567.83462532
The remainder is 116 after subtracting 774 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

After the division, we end up with 54567.83462532 and a remainder of 1.16e-07.