21785487 divided by 550 
The aim is to understand the frequency of 550 in 21785487.

Going ahead to step 1:
The number 550 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 550

On to step 2:
When dividing 21 by 550, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 550

Let's proceed to step 3:
550 can be fit into 217 0 times, resulting in a remainder of 217.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 217 after subtracting 0 from 217.
Append the next digit (8) from the dividend to 217 and continue with: 2178 / 550

On to step 4:
When dividing 2178 by 550, we get 3 with a remainder of 528.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 1650 from 2178 to get 528.
Take the next digit (5) from the dividend and append it to 528, then repeat: 5285 / 550

Let's proceed to step 5:
The number 550 fits into 5285 9 times, leaving a remainder of 335.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
If we take 4950 away from 5285, we end up with 335.
Append the next digit (4) from the dividend to 335 and continue with: 3354 / 550

Step 6:
3354 divided by 550 is 6 with a remainder of 54.
The next digit of our result is 6. 
Result so far: 396.0
Subtracting 3300 from 3354 leaves us with 54.
Take the next digit (8) from the dividend and append it to 54, then repeat: 548 / 550

Advancing to step 7:
548 divided by 550 is 0 with a remainder of 548.
Use 0 as the next digit of our solution. 
Result so far: 3960.0
If we take 0 away from 548, we end up with 548.
Append the next digit (7) from the dividend to 548 and continue with: 5487 / 550

Let's proceed to step 8:
If we divide 5487 by 550, we get 9 and a remainder of 537.
Write down 9 as next digit of the result. 
Result so far: 39609.0
If we take 4950 away from 5487, we end up with 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Step 9:
When dividing 5370 by 550, we get 9 with a remainder of 420.
Use 9 as the next digit of our solution. 
Result so far: 39609.9
Subtracting 4950 from 5370 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 10:
When dividing 4200 by 550, we get 7 with a remainder of 350.
Write down 7 as next digit of the result. 
Result so far: 39609.97
Subtracting 3850 from 4200 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 11:
The number 550 fits into 3500 6 times, leaving a remainder of 200.
The number 6 becomes the next digit in our result. 
Result so far: 39609.976
The remainder is 200 after subtracting 3300 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 12:
2000 divided by 550 is 3 with a remainder of 350.
The next digit of our result is 3. 
Result so far: 39609.9763
Deduct 1650 from 2000 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Moving on to step 13:
550 goes into 3500 6 times with a remainder of 200.
Write down 6 as next digit of the result. 
Result so far: 39609.97636
The remainder is 200 after subtracting 3300 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 14:
550 can be fit into 2000 3 times, resulting in a remainder of 350.
Write down 3 as next digit of the result. 
Result so far: 39609.976363
The remainder is 350 after subtracting 1650 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 15:
The number 550 fits into 3500 6 times, leaving a remainder of 200.
Write down 6 as next digit of the result. 
Result so far: 39609.9763636
Deduct 3300 from 3500 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 16:
550 goes into 2000 3 times with a remainder of 350.
Record the quotient 3 as the next digit in the result. 
Result so far: 39609.97636363
Subtract 1650 from 2000 to get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

After the division, we end up with 39609.97636363 and a remainder of 3.5e-07.