53857213 divided by 609 
We want to figure out the number of times 53857213 can be divided by 609.

On to step 1:
609 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 609

Let's proceed to step 2:
The number 609 fits into 53 0 times, leaving a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Bring next digit (8) of the dividend behind the 53 and repeat the process: 538 / 609

Let's proceed to step 3:
609 can be fit into 538 0 times, resulting in a remainder of 538.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 538 after subtracting 0 from 538.
Include the next digit (5) from the dividend after 538, then repeat: 5385 / 609

Moving on to step 4:
5385 divided by 609 is 8 with a remainder of 513.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 4872 from 5385 and we're left with 513.
Grab the next digit (7) from the dividend, add it to 513, then carry on: 5137 / 609

Going ahead to step 5:
5137 divided by 609 is 8 with a remainder of 265.
Put 8 as the next digit of the answer. 
Result so far: 88.0
Deduct 4872 from 5137 and we're left with 265.
Grab the next digit (2) from the dividend, add it to 265, then carry on: 2652 / 609

Moving on to step 6:
609 can be fit into 2652 4 times, resulting in a remainder of 216.
Write down 4 as next digit of the result. 
Result so far: 884.0
The remainder is 216 after subtracting 2436 from 2652.
Fetch the next digit (1) from the dividend, attach it to 216 and continue: 2161 / 609

Step 7:
2161 divided by 609 is 3 with a remainder of 334.
Use 3 as the next digit of our solution. 
Result so far: 8843.0
Subtracting 1827 from 2161 leaves us with 334.
Fetch the next digit (3) from the dividend, attach it to 334 and continue: 3343 / 609

Let's proceed to step 8:
609 can be fit into 3343 5 times, resulting in a remainder of 298.
The number 5 becomes the next digit in our result. 
Result so far: 88435.0
If we take 3045 away from 3343, we end up with 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

On to step 9:
When dividing 2980 by 609, we get 4 with a remainder of 544.
Write down 4 as next digit of the result. 
Result so far: 88435.4
If we take 2436 away from 2980, we end up with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Let's proceed to step 10:
The number 609 fits into 5440 8 times, leaving a remainder of 568.
Record the quotient 8 as the next digit in the result. 
Result so far: 88435.48
Deduct 4872 from 5440 and we're left with 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Advancing to step 11:
The number 609 fits into 5680 9 times, leaving a remainder of 199.
The next digit of our result is 9. 
Result so far: 88435.489
If we take 5481 away from 5680, we end up with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

On to step 12:
609 goes into 1990 3 times with a remainder of 163.
The number 3 becomes the next digit in our result. 
Result so far: 88435.4893
Subtract 1827 from 1990 to get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Moving on to step 13:
The number 609 fits into 1630 2 times, leaving a remainder of 412.
Use 2 as the next digit of our solution. 
Result so far: 88435.48932
Subtract 1218 from 1630 to get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Moving on to step 14:
609 can be fit into 4120 6 times, resulting in a remainder of 466.
Write down 6 as next digit of the result. 
Result so far: 88435.489326
If we take 3654 away from 4120, we end up with 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Step 15:
When dividing 4660 by 609, we get 7 with a remainder of 397.
Write down 7 as next digit of the result. 
Result so far: 88435.4893267
The remainder is 397 after subtracting 4263 from 4660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Going ahead to step 16:
609 can be fit into 3970 6 times, resulting in a remainder of 316.
The next digit of our result is 6. 
Result so far: 88435.48932676
Subtracting 3654 from 3970 leaves us with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

After the division, we end up with 88435.48932676 and a remainder of 3.16e-07.