We're dividing 86643870 by 284 
The aim is to understand the frequency of 284 in 86643870.

Let's proceed to step 1:
The number 284 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 284

Step 2:
86 divided by 284 is 0 with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Fetch the next digit (6) from the dividend, attach it to 86 and continue: 866 / 284

Advancing to step 3:
If we divide 866 by 284, we get 3 and a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 852 from 866 to get 14.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 284

Going ahead to step 4:
284 goes into 144 0 times with a remainder of 144.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 144 and we're left with 144.
Take the next digit (3) from the dividend and append it to 144, then repeat: 1443 / 284

Step 5:
When dividing 1443 by 284, we get 5 with a remainder of 23.
Write down 5 as next digit of the result. 
Result so far: 305.0
If we subtract 1420 from 1443, we get 23.
Grab the next digit (8) from the dividend, add it to 23, then carry on: 238 / 284

Going ahead to step 6:
238 divided by 284 is 0 with a remainder of 238.
The next digit of our result is 0. 
Result so far: 3050.0
Subtract 0 from 238 to get 238.
Bring next digit (7) of the dividend behind the 238 and repeat the process: 2387 / 284

On to step 7:
The number 284 fits into 2387 8 times, leaving a remainder of 115.
Put 8 as the next digit of the answer. 
Result so far: 30508.0
The remainder is 115 after subtracting 2272 from 2387.
Fetch the next digit (0) from the dividend, attach it to 115 and continue: 1150 / 284

Advancing to step 8:
1150 divided by 284 is 4 with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 305084.0
The remainder is 14 after subtracting 1136 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
140 divided by 284 is 0 with a remainder of 140.
The next digit of our result is 0. 
Result so far: 305084.0
If we subtract 0 from 140, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 10:
If we divide 1400 by 284, we get 4 and a remainder of 264.
Use 4 as the next digit of our solution. 
Result so far: 305084.04
Subtract 1136 from 1400 to get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Moving on to step 11:
The number 284 fits into 2640 9 times, leaving a remainder of 84.
Record the quotient 9 as the next digit in the result. 
Result so far: 305084.049
If we subtract 2556 from 2640, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 12:
284 can be fit into 840 2 times, resulting in a remainder of 272.
Record the quotient 2 as the next digit in the result. 
Result so far: 305084.0492
Deduct 568 from 840 and we're left with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Moving on to step 13:
284 goes into 2720 9 times with a remainder of 164.
Use 9 as the next digit of our solution. 
Result so far: 305084.04929
If we take 2556 away from 2720, we end up with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Going ahead to step 14:
284 goes into 1640 5 times with a remainder of 220.
The number 5 becomes the next digit in our result. 
Result so far: 305084.049295
Deduct 1420 from 1640 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 15:
The number 284 fits into 2200 7 times, leaving a remainder of 212.
Use 7 as the next digit of our solution. 
Result so far: 305084.0492957
The remainder is 212 after subtracting 1988 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

On to step 16:
284 goes into 2120 7 times with a remainder of 132.
The next digit of our result is 7. 
Result so far: 305084.04929577
Deduct 1988 from 2120 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

The quotient of the division is 305084.04929577, and the remainder is 1.32e-07.