We're dividing 11980210 by 861 
The aim is to understand the frequency of 861 in 11980210.

On to step 1:
861 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 861

Moving on to step 2:
861 goes into 11 0 times with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 11, we get 11.
Bring next digit (9) of the dividend behind the 11 and repeat the process: 119 / 861

On to step 3:
The number 861 fits into 119 0 times, leaving a remainder of 119.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 119 after subtracting 0 from 119.
Append the next digit (8) from the dividend to 119 and continue with: 1198 / 861

On to step 4:
861 goes into 1198 1 times with a remainder of 337.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 861 from 1198 leaves us with 337.
Append the next digit (0) from the dividend to 337 and continue with: 3370 / 861

Let's proceed to step 5:
The number 861 fits into 3370 3 times, leaving a remainder of 787.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 2583 from 3370 to get 787.
Append the next digit (2) from the dividend to 787 and continue with: 7872 / 861

Step 6:
The number 861 fits into 7872 9 times, leaving a remainder of 123.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
If we subtract 7749 from 7872, we get 123.
Append the next digit (1) from the dividend to 123 and continue with: 1231 / 861

Let's proceed to step 7:
If we divide 1231 by 861, we get 1 and a remainder of 370.
Record the quotient 1 as the next digit in the result. 
Result so far: 1391.0
If we subtract 861 from 1231, we get 370.
Fetch the next digit (0) from the dividend, attach it to 370 and continue: 3700 / 861

Advancing to step 8:
861 goes into 3700 4 times with a remainder of 256.
Write down 4 as next digit of the result. 
Result so far: 13914.0
Subtracting 3444 from 3700 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

On to step 9:
861 can be fit into 2560 2 times, resulting in a remainder of 838.
The number 2 becomes the next digit in our result. 
Result so far: 13914.2
Subtract 1722 from 2560 to get 838.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8380, and continue the process.

Let's proceed to step 10:
If we divide 8380 by 861, we get 9 and a remainder of 631.
Put 9 as the next digit of the answer. 
Result so far: 13914.29
If we take 7749 away from 8380, we end up with 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Moving on to step 11:
861 goes into 6310 7 times with a remainder of 283.
Put 7 as the next digit of the answer. 
Result so far: 13914.297
Deduct 6027 from 6310 and we're left with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Going ahead to step 12:
When dividing 2830 by 861, we get 3 with a remainder of 247.
Write down 3 as next digit of the result. 
Result so far: 13914.2973
Deduct 2583 from 2830 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Moving on to step 13:
861 goes into 2470 2 times with a remainder of 748.
Record the quotient 2 as the next digit in the result. 
Result so far: 13914.29732
Subtracting 1722 from 2470 leaves us with 748.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7480, and continue the process.

Going ahead to step 14:
861 can be fit into 7480 8 times, resulting in a remainder of 592.
The number 8 becomes the next digit in our result. 
Result so far: 13914.297328
The remainder is 592 after subtracting 6888 from 7480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Advancing to step 15:
861 can be fit into 5920 6 times, resulting in a remainder of 754.
Write down 6 as next digit of the result. 
Result so far: 13914.2973286
If we take 5166 away from 5920, we end up with 754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

Going ahead to step 16:
861 can be fit into 7540 8 times, resulting in a remainder of 652.
The number 8 becomes the next digit in our result. 
Result so far: 13914.29732868
The remainder is 652 after subtracting 6888 from 7540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6520, and continue the process.

In conclusion, the division gives 13914.29732868 with a balance of 6.52e-07.