53513542 ÷ 664 
We want to divide 53513542 by 664.

Step 1:
When dividing 5 by 664, we get 0 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.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 664

Going ahead to step 2:
664 goes into 53 0 times with a remainder of 53.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Append the next digit (5) from the dividend to 53 and continue with: 535 / 664

On to step 3:
When dividing 535 by 664, we get 0 with a remainder of 535.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 535 and we're left with 535.
Grab the next digit (1) from the dividend, add it to 535, then carry on: 5351 / 664

On to step 4:
664 can be fit into 5351 8 times, resulting in a remainder of 39.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 5312 from 5351 and we're left with 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 664

Going ahead to step 5:
When dividing 393 by 664, we get 0 with a remainder of 393.
Use 0 as the next digit of our solution. 
Result so far: 80.0
Subtracting 0 from 393 leaves us with 393.
Take the next digit (5) from the dividend and append it to 393, then repeat: 3935 / 664

Let's proceed to step 6:
When dividing 3935 by 664, we get 5 with a remainder of 615.
Write down 5 as next digit of the result. 
Result so far: 805.0
Deduct 3320 from 3935 and we're left with 615.
Append the next digit (4) from the dividend to 615 and continue with: 6154 / 664

On to step 7:
When dividing 6154 by 664, we get 9 with a remainder of 178.
The next digit of our result is 9. 
Result so far: 8059.0
Subtracting 5976 from 6154 leaves us with 178.
Grab the next digit (2) from the dividend, add it to 178, then carry on: 1782 / 664

On to step 8:
664 goes into 1782 2 times with a remainder of 454.
Put 2 as the next digit of the answer. 
Result so far: 80592.0
Subtracting 1328 from 1782 leaves us with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Step 9:
The number 664 fits into 4540 6 times, leaving a remainder of 556.
Use 6 as the next digit of our solution. 
Result so far: 80592.6
If we take 3984 away from 4540, we end up with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

On to step 10:
664 can be fit into 5560 8 times, resulting in a remainder of 248.
Write down 8 as next digit of the result. 
Result so far: 80592.68
If we subtract 5312 from 5560, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Let's proceed to step 11:
If we divide 2480 by 664, we get 3 and a remainder of 488.
Put 3 as the next digit of the answer. 
Result so far: 80592.683
If we subtract 1992 from 2480, we get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Going ahead to step 12:
664 can be fit into 4880 7 times, resulting in a remainder of 232.
Put 7 as the next digit of the answer. 
Result so far: 80592.6837
If we take 4648 away from 4880, we end up with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Advancing to step 13:
2320 divided by 664 is 3 with a remainder of 328.
Write down 3 as next digit of the result. 
Result so far: 80592.68373
Subtract 1992 from 2320 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

On to step 14:
When dividing 3280 by 664, we get 4 with a remainder of 624.
Write down 4 as next digit of the result. 
Result so far: 80592.683734
Subtract 2656 from 3280 to get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Going ahead to step 15:
When dividing 6240 by 664, we get 9 with a remainder of 264.
Record the quotient 9 as the next digit in the result. 
Result so far: 80592.6837349
Subtract 5976 from 6240 to get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Step 16:
When dividing 2640 by 664, we get 3 with a remainder of 648.
Write down 3 as next digit of the result. 
Result so far: 80592.68373493
Subtracting 1992 from 2640 leaves us with 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

The quotient of the division is 80592.68373493, and the remainder is 6.48e-07.