19909810 ÷ 906 
Let's see how many times 906 fits into 19909810.

Going ahead to step 1:
The number 906 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 906

Advancing to step 2:
906 goes into 19 0 times with a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 906

Advancing to step 3:
If we divide 199 by 906, we get 0 and a remainder of 199.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 199, we end up with 199.
Append the next digit (0) from the dividend to 199 and continue with: 1990 / 906

Moving on to step 4:
906 can be fit into 1990 2 times, resulting in a remainder of 178.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 1812 from 1990 and we're left with 178.
Append the next digit (9) from the dividend to 178 and continue with: 1789 / 906

Going ahead to step 5:
906 can be fit into 1789 1 times, resulting in a remainder of 883.
The next digit of our result is 1. 
Result so far: 21.0
If we take 906 away from 1789, we end up with 883.
Bring next digit (8) of the dividend behind the 883 and repeat the process: 8838 / 906

On to step 6:
906 goes into 8838 9 times with a remainder of 684.
Write down 9 as next digit of the result. 
Result so far: 219.0
Subtract 8154 from 8838 to get 684.
Bring next digit (1) of the dividend behind the 684 and repeat the process: 6841 / 906

Going ahead to step 7:
906 can be fit into 6841 7 times, resulting in a remainder of 499.
Put 7 as the next digit of the answer. 
Result so far: 2197.0
Deduct 6342 from 6841 and we're left with 499.
Bring next digit (0) of the dividend behind the 499 and repeat the process: 4990 / 906

Advancing to step 8:
If we divide 4990 by 906, we get 5 and a remainder of 460.
Use 5 as the next digit of our solution. 
Result so far: 21975.0
Deduct 4530 from 4990 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Let's proceed to step 9:
906 can be fit into 4600 5 times, resulting in a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 21975.5
If we take 4530 away from 4600, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
The number 906 fits into 700 0 times, leaving a remainder of 700.
Record the quotient 0 as the next digit in the result. 
Result so far: 21975.5
Deduct 0 from 700 and we're left with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 11:
906 goes into 7000 7 times with a remainder of 658.
Write down 7 as next digit of the result. 
Result so far: 21975.507
Subtracting 6342 from 7000 leaves us with 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

Let's proceed to step 12:
If we divide 6580 by 906, we get 7 and a remainder of 238.
Use 7 as the next digit of our solution. 
Result so far: 21975.5077
Subtracting 6342 from 6580 leaves us with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

After the division, we end up with 21975.5077 and a remainder of 0.00238.