Let's divide 55109424 by 210
We're looking to find how many times 210 goes into 55109424.

Going ahead to step 1:
When dividing 5 by 210, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 210

Let's proceed to step 2:
If we divide 55 by 210, we get 0 and a remainder of 55.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 55 to get 55.
Fetch the next digit (1) from the dividend, attach it to 55 and continue: 551 / 210

Going ahead to step 3:
If we divide 551 by 210, we get 2 and a remainder of 131.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 420 from 551, we get 131.
Bring next digit (0) of the dividend behind the 131 and repeat the process: 1310 / 210

Advancing to step 4:
When dividing 1310 by 210, we get 6 with a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
If we subtract 1260 from 1310, we get 50.
Include the next digit (9) from the dividend after 50, then repeat: 509 / 210

Let's proceed to step 5:
509 divided by 210 is 2 with a remainder of 89.
Write down 2 as next digit of the result. 
Result so far: 262.0
Deduct 420 from 509 and we're left with 89.
Include the next digit (4) from the dividend after 89, then repeat: 894 / 210

On to step 6:
210 can be fit into 894 4 times, resulting in a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 2624.0
Subtracting 840 from 894 leaves us with 54.
Grab the next digit (2) from the dividend, add it to 54, then carry on: 542 / 210

Moving on to step 7:
542 divided by 210 is 2 with a remainder of 122.
Write down 2 as next digit of the result. 
Result so far: 26242.0
Subtracting 420 from 542 leaves us with 122.
Fetch the next digit (4) from the dividend, attach it to 122 and continue: 1224 / 210

Going ahead to step 8:
210 can be fit into 1224 5 times, resulting in a remainder of 174.
Put 5 as the next digit of the answer. 
Result so far: 262425.0
Subtracting 1050 from 1224 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 9:
When dividing 1740 by 210, we get 8 with a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 262425.8
Subtract 1680 from 1740 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 10:
If we divide 600 by 210, we get 2 and a remainder of 180.
Write down 2 as next digit of the result. 
Result so far: 262425.82
Subtracting 420 from 600 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 11:
210 can be fit into 1800 8 times, resulting in a remainder of 120.
The number 8 becomes the next digit in our result. 
Result so far: 262425.828
Subtracting 1680 from 1800 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 12:
If we divide 1200 by 210, we get 5 and a remainder of 150.
The next digit of our result is 5. 
Result so far: 262425.8285
The remainder is 150 after subtracting 1050 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 13:
210 goes into 1500 7 times with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 262425.82857
If we subtract 1470 from 1500, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 14:
210 goes into 300 1 times with a remainder of 90.
The number 1 becomes the next digit in our result. 
Result so far: 262425.828571
If we take 210 away from 300, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 15:
If we divide 900 by 210, we get 4 and a remainder of 60.
Use 4 as the next digit of our solution. 
Result so far: 262425.8285714
If we take 840 away from 900, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 16:
The number 210 fits into 600 2 times, leaving a remainder of 180.
The next digit of our result is 2. 
Result so far: 262425.82857142
Subtract 420 from 600 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final result is 262425.82857142 with a remainder of 1.8e-07.