Let's divide 20682561 by 406
We want to figure out the number of times 20682561 can be divided by 406.

Step 1:
2 divided by 406 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 406

On to step 2:
When dividing 20 by 406, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Bring next digit (6) of the dividend behind the 20 and repeat the process: 206 / 406

Moving on to step 3:
The number 406 fits into 206 0 times, leaving a remainder of 206.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 206, we end up with 206.
Fetch the next digit (8) from the dividend, attach it to 206 and continue: 2068 / 406

On to step 4:
2068 divided by 406 is 5 with a remainder of 38.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 2030 from 2068 and we're left with 38.
Take the next digit (2) from the dividend and append it to 38, then repeat: 382 / 406

Step 5:
406 goes into 382 0 times with a remainder of 382.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we take 0 away from 382, we end up with 382.
Fetch the next digit (5) from the dividend, attach it to 382 and continue: 3825 / 406

Advancing to step 6:
If we divide 3825 by 406, we get 9 and a remainder of 171.
Write down 9 as next digit of the result. 
Result so far: 509.0
If we take 3654 away from 3825, we end up with 171.
Grab the next digit (6) from the dividend, add it to 171, then carry on: 1716 / 406

Going ahead to step 7:
If we divide 1716 by 406, we get 4 and a remainder of 92.
Use 4 as the next digit of our solution. 
Result so far: 5094.0
If we subtract 1624 from 1716, we get 92.
Take the next digit (1) from the dividend and append it to 92, then repeat: 921 / 406

Advancing to step 8:
If we divide 921 by 406, we get 2 and a remainder of 109.
Record the quotient 2 as the next digit in the result. 
Result so far: 50942.0
If we take 812 away from 921, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Moving on to step 9:
If we divide 1090 by 406, we get 2 and a remainder of 278.
Use 2 as the next digit of our solution. 
Result so far: 50942.2
Deduct 812 from 1090 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Step 10:
2780 divided by 406 is 6 with a remainder of 344.
The next digit of our result is 6. 
Result so far: 50942.26
Subtracting 2436 from 2780 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Step 11:
406 goes into 3440 8 times with a remainder of 192.
Put 8 as the next digit of the answer. 
Result so far: 50942.268
The remainder is 192 after subtracting 3248 from 3440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 12:
406 can be fit into 1920 4 times, resulting in a remainder of 296.
Put 4 as the next digit of the answer. 
Result so far: 50942.2684
Deduct 1624 from 1920 and we're left with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 13:
If we divide 2960 by 406, we get 7 and a remainder of 118.
Write down 7 as next digit of the result. 
Result so far: 50942.26847
The remainder is 118 after subtracting 2842 from 2960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Moving on to step 14:
If we divide 1180 by 406, we get 2 and a remainder of 368.
Record the quotient 2 as the next digit in the result. 
Result so far: 50942.268472
Subtract 812 from 1180 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Going ahead to step 15:
The number 406 fits into 3680 9 times, leaving a remainder of 26.
The next digit of our result is 9. 
Result so far: 50942.2684729
Subtracting 3654 from 3680 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 16:
The number 406 fits into 260 0 times, leaving a remainder of 260.
Write down 0 as next digit of the result. 
Result so far: 50942.2684729
Deduct 0 from 260 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

The final outcome is 50942.2684729, with a leftover of 2.6e-07.