We're dividing 74187280 by 861 
The aim is to understand the frequency of 861 in 74187280.

Going ahead to step 1:
861 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.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 861

On to step 2:
When dividing 74 by 861, we get 0 with a remainder of 74.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 74 to get 74.
Take the next digit (1) from the dividend and append it to 74, then repeat: 741 / 861

Advancing to step 3:
If we divide 741 by 861, we get 0 and a remainder of 741.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 741, we end up with 741.
Bring next digit (8) of the dividend behind the 741 and repeat the process: 7418 / 861

Advancing to step 4:
861 can be fit into 7418 8 times, resulting in a remainder of 530.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 6888 from 7418 leaves us with 530.
Fetch the next digit (7) from the dividend, attach it to 530 and continue: 5307 / 861

On to step 5:
861 goes into 5307 6 times with a remainder of 141.
The next digit of our result is 6. 
Result so far: 86.0
If we take 5166 away from 5307, we end up with 141.
Fetch the next digit (2) from the dividend, attach it to 141 and continue: 1412 / 861

Advancing to step 6:
When dividing 1412 by 861, we get 1 with a remainder of 551.
Use 1 as the next digit of our solution. 
Result so far: 861.0
If we subtract 861 from 1412, we get 551.
Include the next digit (8) from the dividend after 551, then repeat: 5518 / 861

Going ahead to step 7:
861 can be fit into 5518 6 times, resulting in a remainder of 352.
The number 6 becomes the next digit in our result. 
Result so far: 8616.0
The remainder is 352 after subtracting 5166 from 5518.
Bring next digit (0) of the dividend behind the 352 and repeat the process: 3520 / 861

Moving on to step 8:
861 goes into 3520 4 times with a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 86164.0
Subtracting 3444 from 3520 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 9:
When dividing 760 by 861, we get 0 with a remainder of 760.
The next digit of our result is 0. 
Result so far: 86164.0
If we subtract 0 from 760, we get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Advancing to step 10:
7600 divided by 861 is 8 with a remainder of 712.
Write down 8 as next digit of the result. 
Result so far: 86164.08
Deduct 6888 from 7600 and we're left with 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

On to step 11:
The number 861 fits into 7120 8 times, leaving a remainder of 232.
Write down 8 as next digit of the result. 
Result so far: 86164.088
Subtract 6888 from 7120 to get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

After the division, we end up with 86164.088 and a remainder of 0.0232.