We're dividing 43686981 by 486 
The aim is to understand the frequency of 486 in 43686981.

On to step 1:
4 divided by 486 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 486

Moving on to step 2:
43 divided by 486 is 0 with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Include the next digit (6) from the dividend after 43, then repeat: 436 / 486

On to step 3:
436 divided by 486 is 0 with a remainder of 436.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 436 to get 436.
Bring next digit (8) of the dividend behind the 436 and repeat the process: 4368 / 486

Moving on to step 4:
The number 486 fits into 4368 8 times, leaving a remainder of 480.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 3888 from 4368 to get 480.
Bring next digit (6) of the dividend behind the 480 and repeat the process: 4806 / 486

Moving on to step 5:
The number 486 fits into 4806 9 times, leaving a remainder of 432.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
If we take 4374 away from 4806, we end up with 432.
Grab the next digit (9) from the dividend, add it to 432, then carry on: 4329 / 486

Moving on to step 6:
When dividing 4329 by 486, we get 8 with a remainder of 441.
Put 8 as the next digit of the answer. 
Result so far: 898.0
Subtract 3888 from 4329 to get 441.
Grab the next digit (8) from the dividend, add it to 441, then carry on: 4418 / 486

Let's proceed to step 7:
4418 divided by 486 is 9 with a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 8989.0
Subtracting 4374 from 4418 leaves us with 44.
Grab the next digit (1) from the dividend, add it to 44, then carry on: 441 / 486

Advancing to step 8:
441 divided by 486 is 0 with a remainder of 441.
The number 0 becomes the next digit in our result. 
Result so far: 89890.0
The remainder is 441 after subtracting 0 from 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Going ahead to step 9:
The number 486 fits into 4410 9 times, leaving a remainder of 36.
Put 9 as the next digit of the answer. 
Result so far: 89890.9
Subtracting 4374 from 4410 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 10:
The number 486 fits into 360 0 times, leaving a remainder of 360.
Put 0 as the next digit of the answer. 
Result so far: 89890.9
The remainder is 360 after subtracting 0 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 11:
When dividing 3600 by 486, we get 7 with a remainder of 198.
The number 7 becomes the next digit in our result. 
Result so far: 89890.907
Subtracting 3402 from 3600 leaves us with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Let's proceed to step 12:
When dividing 1980 by 486, we get 4 with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 89890.9074
If we subtract 1944 from 1980, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 13:
486 can be fit into 360 0 times, resulting in a remainder of 360.
Use 0 as the next digit of our solution. 
Result so far: 89890.9074
If we subtract 0 from 360, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 14:
486 goes into 3600 7 times with a remainder of 198.
Write down 7 as next digit of the result. 
Result so far: 89890.907407
If we subtract 3402 from 3600, we get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Going ahead to step 15:
486 can be fit into 1980 4 times, resulting in a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 89890.9074074
If we subtract 1944 from 1980, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 16:
486 can be fit into 360 0 times, resulting in a remainder of 360.
Put 0 as the next digit of the answer. 
Result so far: 89890.9074074
If we take 0 away from 360, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Our division results in 89890.9074074 with a remaining 3.6e-07.