53509400 divided by 830 
Let's see how many times 830 fits into 53509400.

Let's proceed to step 1:
830 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 830

Advancing to step 2:
53 divided by 830 is 0 with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Grab the next digit (5) from the dividend, add it to 53, then carry on: 535 / 830

Let's proceed to step 3:
If we divide 535 by 830, we get 0 and a remainder of 535.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 535, we get 535.
Include the next digit (0) from the dividend after 535, then repeat: 5350 / 830

Going ahead to step 4:
5350 divided by 830 is 6 with a remainder of 370.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 4980 from 5350 leaves us with 370.
Bring next digit (9) of the dividend behind the 370 and repeat the process: 3709 / 830

Going ahead to step 5:
830 can be fit into 3709 4 times, resulting in a remainder of 389.
Put 4 as the next digit of the answer. 
Result so far: 64.0
If we take 3320 away from 3709, we end up with 389.
Append the next digit (4) from the dividend to 389 and continue with: 3894 / 830

Step 6:
The number 830 fits into 3894 4 times, leaving a remainder of 574.
Record the quotient 4 as the next digit in the result. 
Result so far: 644.0
If we take 3320 away from 3894, we end up with 574.
Bring next digit (0) of the dividend behind the 574 and repeat the process: 5740 / 830

Step 7:
830 goes into 5740 6 times with a remainder of 760.
Use 6 as the next digit of our solution. 
Result so far: 6446.0
Subtracting 4980 from 5740 leaves us with 760.
Grab the next digit (0) from the dividend, add it to 760, then carry on: 7600 / 830

Let's proceed to step 8:
When dividing 7600 by 830, we get 9 with a remainder of 130.
Use 9 as the next digit of our solution. 
Result so far: 64469.0
The remainder is 130 after subtracting 7470 from 7600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 9:
The number 830 fits into 1300 1 times, leaving a remainder of 470.
The next digit of our result is 1. 
Result so far: 64469.1
Subtract 830 from 1300 to get 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

On to step 10:
The number 830 fits into 4700 5 times, leaving a remainder of 550.
Use 5 as the next digit of our solution. 
Result so far: 64469.15
Deduct 4150 from 4700 and we're left with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 11:
5500 divided by 830 is 6 with a remainder of 520.
Use 6 as the next digit of our solution. 
Result so far: 64469.156
Deduct 4980 from 5500 and we're left with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Step 12:
830 can be fit into 5200 6 times, resulting in a remainder of 220.
The number 6 becomes the next digit in our result. 
Result so far: 64469.1566
Deduct 4980 from 5200 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The final result is 64469.1566 with a remainder of 0.0022.