53395431 ÷ 801 
We want to divide 53395431 by 801.

Advancing to step 1:
801 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 801

On to step 2:
The number 801 fits into 53 0 times, leaving a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Include the next digit (3) from the dividend after 53, then repeat: 533 / 801

Going ahead to step 3:
533 divided by 801 is 0 with a remainder of 533.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 533 and we're left with 533.
Fetch the next digit (9) from the dividend, attach it to 533 and continue: 5339 / 801

Advancing to step 4:
5339 divided by 801 is 6 with a remainder of 533.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 4806 from 5339 and we're left with 533.
Take the next digit (5) from the dividend and append it to 533, then repeat: 5335 / 801

On to step 5:
801 goes into 5335 6 times with a remainder of 529.
Use 6 as the next digit of our solution. 
Result so far: 66.0
If we take 4806 away from 5335, we end up with 529.
Grab the next digit (4) from the dividend, add it to 529, then carry on: 5294 / 801

Step 6:
The number 801 fits into 5294 6 times, leaving a remainder of 488.
Record the quotient 6 as the next digit in the result. 
Result so far: 666.0
Subtracting 4806 from 5294 leaves us with 488.
Grab the next digit (3) from the dividend, add it to 488, then carry on: 4883 / 801

Advancing to step 7:
801 goes into 4883 6 times with a remainder of 77.
Write down 6 as next digit of the result. 
Result so far: 6666.0
If we take 4806 away from 4883, we end up with 77.
Grab the next digit (1) from the dividend, add it to 77, then carry on: 771 / 801

Moving on to step 8:
If we divide 771 by 801, we get 0 and a remainder of 771.
The next digit of our result is 0. 
Result so far: 66660.0
Deduct 0 from 771 and we're left with 771.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7710, and continue the process.

Step 9:
When dividing 7710 by 801, we get 9 with a remainder of 501.
Write down 9 as next digit of the result. 
Result so far: 66660.9
Subtracting 7209 from 7710 leaves us with 501.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5010, and continue the process.

Going ahead to step 10:
The number 801 fits into 5010 6 times, leaving a remainder of 204.
Write down 6 as next digit of the result. 
Result so far: 66660.96
If we take 4806 away from 5010, we end up with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 11:
801 goes into 2040 2 times with a remainder of 438.
Record the quotient 2 as the next digit in the result. 
Result so far: 66660.962
Subtracting 1602 from 2040 leaves us with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Moving on to step 12:
The number 801 fits into 4380 5 times, leaving a remainder of 375.
Use 5 as the next digit of our solution. 
Result so far: 66660.9625
The remainder is 375 after subtracting 4005 from 4380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Let's proceed to step 13:
801 goes into 3750 4 times with a remainder of 546.
Put 4 as the next digit of the answer. 
Result so far: 66660.96254
If we take 3204 away from 3750, we end up with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Going ahead to step 14:
5460 divided by 801 is 6 with a remainder of 654.
The number 6 becomes the next digit in our result. 
Result so far: 66660.962546
The remainder is 654 after subtracting 4806 from 5460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Going ahead to step 15:
801 goes into 6540 8 times with a remainder of 132.
Use 8 as the next digit of our solution. 
Result so far: 66660.9625468
If we take 6408 away from 6540, we end up with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Advancing to step 16:
801 goes into 1320 1 times with a remainder of 519.
Write down 1 as next digit of the result. 
Result so far: 66660.96254681
If we take 801 away from 1320, we end up with 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

The final outcome is 66660.96254681, with a leftover of 5.19e-07.