21941011 ÷ 649 
The aim is to understand the frequency of 649 in 21941011.

Going ahead to step 1:
The number 649 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 649

Let's proceed to step 2:
649 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 649

Let's proceed to step 3:
If we divide 219 by 649, we get 0 and a remainder of 219.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 219 to get 219.
Fetch the next digit (4) from the dividend, attach it to 219 and continue: 2194 / 649

Let's proceed to step 4:
2194 divided by 649 is 3 with a remainder of 247.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 1947 from 2194 leaves us with 247.
Grab the next digit (1) from the dividend, add it to 247, then carry on: 2471 / 649

Going ahead to step 5:
The number 649 fits into 2471 3 times, leaving a remainder of 524.
The next digit of our result is 3. 
Result so far: 33.0
If we subtract 1947 from 2471, we get 524.
Take the next digit (0) from the dividend and append it to 524, then repeat: 5240 / 649

On to step 6:
When dividing 5240 by 649, we get 8 with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 338.0
The remainder is 48 after subtracting 5192 from 5240.
Take the next digit (1) from the dividend and append it to 48, then repeat: 481 / 649

On to step 7:
The number 649 fits into 481 0 times, leaving a remainder of 481.
Write down 0 as next digit of the result. 
Result so far: 3380.0
If we subtract 0 from 481, we get 481.
Append the next digit (1) from the dividend to 481 and continue with: 4811 / 649

Moving on to step 8:
If we divide 4811 by 649, we get 7 and a remainder of 268.
The next digit of our result is 7. 
Result so far: 33807.0
If we take 4543 away from 4811, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Advancing to step 9:
649 goes into 2680 4 times with a remainder of 84.
Write down 4 as next digit of the result. 
Result so far: 33807.4
The remainder is 84 after subtracting 2596 from 2680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 10:
When dividing 840 by 649, we get 1 with a remainder of 191.
Record the quotient 1 as the next digit in the result. 
Result so far: 33807.41
Deduct 649 from 840 and we're left with 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Moving on to step 11:
When dividing 1910 by 649, we get 2 with a remainder of 612.
The next digit of our result is 2. 
Result so far: 33807.412
Subtract 1298 from 1910 to get 612.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6120, and continue the process.

Step 12:
If we divide 6120 by 649, we get 9 and a remainder of 279.
The number 9 becomes the next digit in our result. 
Result so far: 33807.4129
The remainder is 279 after subtracting 5841 from 6120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Step 13:
When dividing 2790 by 649, we get 4 with a remainder of 194.
The number 4 becomes the next digit in our result. 
Result so far: 33807.41294
Subtract 2596 from 2790 to get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

On to step 14:
When dividing 1940 by 649, we get 2 with a remainder of 642.
Record the quotient 2 as the next digit in the result. 
Result so far: 33807.412942
If we subtract 1298 from 1940, we get 642.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6420, and continue the process.

Step 15:
If we divide 6420 by 649, we get 9 and a remainder of 579.
The number 9 becomes the next digit in our result. 
Result so far: 33807.4129429
If we subtract 5841 from 6420, we get 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

Let's proceed to step 16:
If we divide 5790 by 649, we get 8 and a remainder of 598.
Record the quotient 8 as the next digit in the result. 
Result so far: 33807.41294298
If we subtract 5192 from 5790, we get 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

The final outcome is 33807.41294298, with a leftover of 5.98e-07.