Let's divide 7017345 by 387
The aim is to understand the frequency of 387 in 7017345.

On to step 1:
387 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 387

Advancing to step 2:
When dividing 70 by 387, we get 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Bring next digit (1) of the dividend behind the 70 and repeat the process: 701 / 387

Advancing to step 3:
387 can be fit into 701 1 times, resulting in a remainder of 314.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 387 from 701, we get 314.
Grab the next digit (7) from the dividend, add it to 314, then carry on: 3147 / 387

Going ahead to step 4:
If we divide 3147 by 387, we get 8 and a remainder of 51.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Deduct 3096 from 3147 and we're left with 51.
Include the next digit (3) from the dividend after 51, then repeat: 513 / 387

On to step 5:
When dividing 513 by 387, we get 1 with a remainder of 126.
Put 1 as the next digit of the answer. 
Result so far: 181.0
The remainder is 126 after subtracting 387 from 513.
Take the next digit (4) from the dividend and append it to 126, then repeat: 1264 / 387

On to step 6:
1264 divided by 387 is 3 with a remainder of 103.
Use 3 as the next digit of our solution. 
Result so far: 1813.0
Subtract 1161 from 1264 to get 103.
Include the next digit (5) from the dividend after 103, then repeat: 1035 / 387

Let's proceed to step 7:
When dividing 1035 by 387, we get 2 with a remainder of 261.
Record the quotient 2 as the next digit in the result. 
Result so far: 18132.0
Subtracting 774 from 1035 leaves us with 261.
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 8:
When dividing 2610 by 387, we get 6 with a remainder of 288.
The number 6 becomes the next digit in our result. 
Result so far: 18132.6
If we subtract 2322 from 2610, we get 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Advancing to step 9:
387 goes into 2880 7 times with a remainder of 171.
The number 7 becomes the next digit in our result. 
Result so far: 18132.67
If we take 2709 away from 2880, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Step 10:
387 can be fit into 1710 4 times, resulting in a remainder of 162.
Record the quotient 4 as the next digit in the result. 
Result so far: 18132.674
If we take 1548 away from 1710, 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.

Advancing to step 11:
If we divide 1620 by 387, we get 4 and a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 18132.6744
The remainder is 72 after subtracting 1548 from 1620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

In conclusion, the division gives 18132.6744 with a balance of 0.00072.