We look at the division of 83620626 by 649 
The aim is to understand the frequency of 649 in 83620626.

Moving on to step 1:
649 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 649

Going ahead to step 2:
649 goes into 83 0 times with a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Take the next digit (6) from the dividend and append it to 83, then repeat: 836 / 649

Step 3:
649 goes into 836 1 times with a remainder of 187.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 649 from 836 leaves us with 187.
Append the next digit (2) from the dividend to 187 and continue with: 1872 / 649

Moving on to step 4:
When dividing 1872 by 649, we get 2 with a remainder of 574.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 1298 from 1872, we get 574.
Append the next digit (0) from the dividend to 574 and continue with: 5740 / 649

Step 5:
The number 649 fits into 5740 8 times, leaving a remainder of 548.
Put 8 as the next digit of the answer. 
Result so far: 128.0
Deduct 5192 from 5740 and we're left with 548.
Include the next digit (6) from the dividend after 548, then repeat: 5486 / 649

Advancing to step 6:
The number 649 fits into 5486 8 times, leaving a remainder of 294.
The next digit of our result is 8. 
Result so far: 1288.0
Deduct 5192 from 5486 and we're left with 294.
Append the next digit (2) from the dividend to 294 and continue with: 2942 / 649

Step 7:
649 goes into 2942 4 times with a remainder of 346.
Write down 4 as next digit of the result. 
Result so far: 12884.0
The remainder is 346 after subtracting 2596 from 2942.
Grab the next digit (6) from the dividend, add it to 346, then carry on: 3466 / 649

Step 8:
When dividing 3466 by 649, we get 5 with a remainder of 221.
The next digit of our result is 5. 
Result so far: 128845.0
If we subtract 3245 from 3466, we get 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Advancing to step 9:
2210 divided by 649 is 3 with a remainder of 263.
The next digit of our result is 3. 
Result so far: 128845.3
The remainder is 263 after subtracting 1947 from 2210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Let's proceed to step 10:
649 can be fit into 2630 4 times, resulting in a remainder of 34.
Write down 4 as next digit of the result. 
Result so far: 128845.34
Deduct 2596 from 2630 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 11:
When dividing 340 by 649, we get 0 with a remainder of 340.
The next digit of our result is 0. 
Result so far: 128845.34
If we take 0 away from 340, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 12:
When dividing 3400 by 649, we get 5 with a remainder of 155.
Write down 5 as next digit of the result. 
Result so far: 128845.3405
Subtract 3245 from 3400 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Let's proceed to step 13:
If we divide 1550 by 649, we get 2 and a remainder of 252.
Write down 2 as next digit of the result. 
Result so far: 128845.34052
If we subtract 1298 from 1550, we get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Moving on to step 14:
If we divide 2520 by 649, we get 3 and a remainder of 573.
The next digit of our result is 3. 
Result so far: 128845.340523
If we take 1947 away from 2520, we end up with 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Let's proceed to step 15:
649 can be fit into 5730 8 times, resulting in a remainder of 538.
Use 8 as the next digit of our solution. 
Result so far: 128845.3405238
The remainder is 538 after subtracting 5192 from 5730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Moving on to step 16:
The number 649 fits into 5380 8 times, leaving a remainder of 188.
Use 8 as the next digit of our solution. 
Result so far: 128845.34052388
Deduct 5192 from 5380 and we're left with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Our division results in 128845.34052388 with a remaining 1.88e-07.