Let's divide 620421 by 81
We want to figure out the number of times 620421 can be divided by 81.

Step 1:
The number 81 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 81

Advancing to step 2:
81 goes into 62 0 times with a remainder of 62.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 62 leaves us with 62.
Fetch the next digit (0) from the dividend, attach it to 62 and continue: 620 / 81

Advancing to step 3:
When dividing 620 by 81, we get 7 with a remainder of 53.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 567 away from 620, we end up with 53.
Fetch the next digit (4) from the dividend, attach it to 53 and continue: 534 / 81

Step 4:
If we divide 534 by 81, we get 6 and a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Subtract 486 from 534 to get 48.
Include the next digit (2) from the dividend after 48, then repeat: 482 / 81

Let's proceed to step 5:
If we divide 482 by 81, we get 5 and a remainder of 77.
Put 5 as the next digit of the answer. 
Result so far: 765.0
The remainder is 77 after subtracting 405 from 482.
Take the next digit (1) from the dividend and append it to 77, then repeat: 771 / 81

Going ahead to step 6:
The number 81 fits into 771 9 times, leaving a remainder of 42.
Use 9 as the next digit of our solution. 
Result so far: 7659.0
The remainder is 42 after subtracting 729 from 771.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 7:
420 divided by 81 is 5 with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 7659.5
If we subtract 405 from 420, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
When dividing 150 by 81, we get 1 with a remainder of 69.
The next digit of our result is 1. 
Result so far: 7659.51
If we subtract 81 from 150, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 9:
If we divide 690 by 81, we get 8 and a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 7659.518
The remainder is 42 after subtracting 648 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 10:
When dividing 420 by 81, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 7659.5185
The remainder is 15 after subtracting 405 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
If we divide 150 by 81, we get 1 and a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 7659.51851
If we take 81 away from 150, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 12:
81 goes into 690 8 times with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 7659.518518
If we take 648 away from 690, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 13:
420 divided by 81 is 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 7659.5185185
If we take 405 away from 420, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 14:
81 goes into 150 1 times with a remainder of 69.
Use 1 as the next digit of our solution. 
Result so far: 7659.51851851
If we subtract 81 from 150, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

The quotient of the division is 7659.51851851, and the remainder is 6.9e-08.