We look at the division of 63690456 by 906 
We want to divide 63690456 by 906.

On to step 1:
906 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 906

Moving on to step 2:
If we divide 63 by 906, we get 0 and a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Take the next digit (6) from the dividend and append it to 63, then repeat: 636 / 906

Let's proceed to step 3:
636 divided by 906 is 0 with a remainder of 636.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 636 to get 636.
Grab the next digit (9) from the dividend, add it to 636, then carry on: 6369 / 906

Step 4:
6369 divided by 906 is 7 with a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Deduct 6342 from 6369 and we're left with 27.
Append the next digit (0) from the dividend to 27 and continue with: 270 / 906

On to step 5:
The number 906 fits into 270 0 times, leaving a remainder of 270.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
If we subtract 0 from 270, we get 270.
Bring next digit (4) of the dividend behind the 270 and repeat the process: 2704 / 906

Step 6:
906 can be fit into 2704 2 times, resulting in a remainder of 892.
Use 2 as the next digit of our solution. 
Result so far: 702.0
The remainder is 892 after subtracting 1812 from 2704.
Fetch the next digit (5) from the dividend, attach it to 892 and continue: 8925 / 906

Advancing to step 7:
The number 906 fits into 8925 9 times, leaving a remainder of 771.
Put 9 as the next digit of the answer. 
Result so far: 7029.0
Subtracting 8154 from 8925 leaves us with 771.
Bring next digit (6) of the dividend behind the 771 and repeat the process: 7716 / 906

On to step 8:
When dividing 7716 by 906, we get 8 with a remainder of 468.
The number 8 becomes the next digit in our result. 
Result so far: 70298.0
If we take 7248 away from 7716, we end up with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Step 9:
When dividing 4680 by 906, we get 5 with a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 70298.5
If we subtract 4530 from 4680, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 10:
906 goes into 1500 1 times with a remainder of 594.
The number 1 becomes the next digit in our result. 
Result so far: 70298.51
If we take 906 away from 1500, we end up with 594.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Let's proceed to step 11:
5940 divided by 906 is 6 with a remainder of 504.
The next digit of our result is 6. 
Result so far: 70298.516
Deduct 5436 from 5940 and we're left with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 12:
906 goes into 5040 5 times with a remainder of 510.
Use 5 as the next digit of our solution. 
Result so far: 70298.5165
The remainder is 510 after subtracting 4530 from 5040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Going ahead to step 13:
906 can be fit into 5100 5 times, resulting in a remainder of 570.
Use 5 as the next digit of our solution. 
Result so far: 70298.51655
Subtracting 4530 from 5100 leaves us with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

The final outcome is 70298.51655, with a leftover of 0.00057.