We look at the division of 5392660 by 421 
We want to figure out the number of times 5392660 can be divided by 421.

Let's proceed to step 1:
When dividing 5 by 421, we get 0 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 / 421

Advancing to step 2:
421 goes into 53 0 times with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Take the next digit (9) from the dividend and append it to 53, then repeat: 539 / 421

Moving on to step 3:
The number 421 fits into 539 1 times, leaving a remainder of 118.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 421 from 539 and we're left with 118.
Include the next digit (2) from the dividend after 118, then repeat: 1182 / 421

Moving on to step 4:
When dividing 1182 by 421, we get 2 with a remainder of 340.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 842 from 1182 to get 340.
Fetch the next digit (6) from the dividend, attach it to 340 and continue: 3406 / 421

Going ahead to step 5:
3406 divided by 421 is 8 with a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 128.0
Subtract 3368 from 3406 to get 38.
Append the next digit (6) from the dividend to 38 and continue with: 386 / 421

Let's proceed to step 6:
421 can be fit into 386 0 times, resulting in a remainder of 386.
The next digit of our result is 0. 
Result so far: 1280.0
The remainder is 386 after subtracting 0 from 386.
Include the next digit (0) from the dividend after 386, then repeat: 3860 / 421

Step 7:
421 goes into 3860 9 times with a remainder of 71.
Put 9 as the next digit of the answer. 
Result so far: 12809.0
If we take 3789 away from 3860, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 8:
710 divided by 421 is 1 with a remainder of 289.
Put 1 as the next digit of the answer. 
Result so far: 12809.1
Subtracting 421 from 710 leaves us with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Advancing to step 9:
2890 divided by 421 is 6 with a remainder of 364.
Put 6 as the next digit of the answer. 
Result so far: 12809.16
If we take 2526 away from 2890, we end up with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

On to step 10:
421 can be fit into 3640 8 times, resulting in a remainder of 272.
Put 8 as the next digit of the answer. 
Result so far: 12809.168
The remainder is 272 after subtracting 3368 from 3640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Advancing to step 11:
421 can be fit into 2720 6 times, resulting in a remainder of 194.
The number 6 becomes the next digit in our result. 
Result so far: 12809.1686
Subtracting 2526 from 2720 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Step 12:
The number 421 fits into 1940 4 times, leaving a remainder of 256.
Record the quotient 4 as the next digit in the result. 
Result so far: 12809.16864
Subtracting 1684 from 1940 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 13:
421 goes into 2560 6 times with a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 12809.168646
If we subtract 2526 from 2560, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 14:
340 divided by 421 is 0 with a remainder of 340.
The number 0 becomes the next digit in our result. 
Result so far: 12809.168646
Deduct 0 from 340 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Let's proceed to step 15:
3400 divided by 421 is 8 with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 12809.16864608
If we take 3368 away from 3400, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 12809.16864608 and a remainder of 3.2e-08.