We divide 28101720 by 387
The aim is to understand the frequency of 387 in 28101720.

Advancing to step 1:
If we divide 2 by 387, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 387

Moving on to step 2:
387 can be fit into 28 0 times, resulting in a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Include the next digit (1) from the dividend after 28, then repeat: 281 / 387

On to step 3:
281 divided by 387 is 0 with a remainder of 281.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 281, we get 281.
Fetch the next digit (0) from the dividend, attach it to 281 and continue: 2810 / 387

Step 4:
The number 387 fits into 2810 7 times, leaving a remainder of 101.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 2709 away from 2810, we end up with 101.
Fetch the next digit (1) from the dividend, attach it to 101 and continue: 1011 / 387

Step 5:
1011 divided by 387 is 2 with a remainder of 237.
The next digit of our result is 2. 
Result so far: 72.0
Subtracting 774 from 1011 leaves us with 237.
Fetch the next digit (7) from the dividend, attach it to 237 and continue: 2377 / 387

Advancing to step 6:
2377 divided by 387 is 6 with a remainder of 55.
The number 6 becomes the next digit in our result. 
Result so far: 726.0
Subtracting 2322 from 2377 leaves us with 55.
Append the next digit (2) from the dividend to 55 and continue with: 552 / 387

Going ahead to step 7:
387 goes into 552 1 times with a remainder of 165.
The next digit of our result is 1. 
Result so far: 7261.0
If we take 387 away from 552, we end up with 165.
Grab the next digit (0) from the dividend, add it to 165, then carry on: 1650 / 387

Let's proceed to step 8:
387 goes into 1650 4 times with a remainder of 102.
The number 4 becomes the next digit in our result. 
Result so far: 72614.0
If we take 1548 away from 1650, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Let's proceed to step 9:
When dividing 1020 by 387, we get 2 with a remainder of 246.
Write down 2 as next digit of the result. 
Result so far: 72614.2
Subtract 774 from 1020 to get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Moving on to step 10:
The number 387 fits into 2460 6 times, leaving a remainder of 138.
Use 6 as the next digit of our solution. 
Result so far: 72614.26
Subtracting 2322 from 2460 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

On to step 11:
1380 divided by 387 is 3 with a remainder of 219.
Record the quotient 3 as the next digit in the result. 
Result so far: 72614.263
Subtracting 1161 from 1380 leaves us with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Advancing to step 12:
387 can be fit into 2190 5 times, resulting in a remainder of 255.
Record the quotient 5 as the next digit in the result. 
Result so far: 72614.2635
The remainder is 255 after subtracting 1935 from 2190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Advancing to step 13:
2550 divided by 387 is 6 with a remainder of 228.
Write down 6 as next digit of the result. 
Result so far: 72614.26356
If we take 2322 away from 2550, we end up with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Let's proceed to step 14:
The number 387 fits into 2280 5 times, leaving a remainder of 345.
Use 5 as the next digit of our solution. 
Result so far: 72614.263565
Subtracting 1935 from 2280 leaves us with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Going ahead to step 15:
387 can be fit into 3450 8 times, resulting in a remainder of 354.
Write down 8 as next digit of the result. 
Result so far: 72614.2635658
Subtract 3096 from 3450 to get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Let's proceed to step 16:
387 goes into 3540 9 times with a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 72614.26356589
If we subtract 3483 from 3540, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final result is 72614.26356589 with a remainder of 5.7e-08.