Let's divide 20521977 by 906
We want to divide 20521977 by 906.

Step 1:
906 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 906

Advancing to step 2:
906 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Include the next digit (5) from the dividend after 20, then repeat: 205 / 906

Going ahead to step 3:
The number 906 fits into 205 0 times, leaving a remainder of 205.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 205, we end up with 205.
Take the next digit (2) from the dividend and append it to 205, then repeat: 2052 / 906

Moving on to step 4:
The number 906 fits into 2052 2 times, leaving a remainder of 240.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 1812 away from 2052, we end up with 240.
Fetch the next digit (1) from the dividend, attach it to 240 and continue: 2401 / 906

Moving on to step 5:
If we divide 2401 by 906, we get 2 and a remainder of 589.
The next digit of our result is 2. 
Result so far: 22.0
If we subtract 1812 from 2401, we get 589.
Append the next digit (9) from the dividend to 589 and continue with: 5899 / 906

Moving on to step 6:
When dividing 5899 by 906, we get 6 with a remainder of 463.
Put 6 as the next digit of the answer. 
Result so far: 226.0
The remainder is 463 after subtracting 5436 from 5899.
Take the next digit (7) from the dividend and append it to 463, then repeat: 4637 / 906

Step 7:
906 goes into 4637 5 times with a remainder of 107.
Record the quotient 5 as the next digit in the result. 
Result so far: 2265.0
The remainder is 107 after subtracting 4530 from 4637.
Include the next digit (7) from the dividend after 107, then repeat: 1077 / 906

Step 8:
906 can be fit into 1077 1 times, resulting in a remainder of 171.
The number 1 becomes the next digit in our result. 
Result so far: 22651.0
If we take 906 away from 1077, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Advancing to step 9:
If we divide 1710 by 906, we get 1 and a remainder of 804.
The number 1 becomes the next digit in our result. 
Result so far: 22651.1
Deduct 906 from 1710 and we're left with 804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8040, and continue the process.

Advancing to step 10:
906 goes into 8040 8 times with a remainder of 792.
Use 8 as the next digit of our solution. 
Result so far: 22651.18
Subtracting 7248 from 8040 leaves us with 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

Moving on to step 11:
If we divide 7920 by 906, we get 8 and a remainder of 672.
Write down 8 as next digit of the result. 
Result so far: 22651.188
Deduct 7248 from 7920 and we're left with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

The final result is 22651.188 with a remainder of 0.0672.