90646635 ÷ 649 
Let's see how many times 649 fits into 90646635.

Going ahead to step 1:
649 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 649

Advancing to step 2:
649 goes into 90 0 times with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Take the next digit (6) from the dividend and append it to 90, then repeat: 906 / 649

On to step 3:
When dividing 906 by 649, we get 1 with a remainder of 257.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 649 from 906 and we're left with 257.
Append the next digit (4) from the dividend to 257 and continue with: 2574 / 649

Going ahead to step 4:
When dividing 2574 by 649, we get 3 with a remainder of 627.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 1947 from 2574, we get 627.
Fetch the next digit (6) from the dividend, attach it to 627 and continue: 6276 / 649

Going ahead to step 5:
6276 divided by 649 is 9 with a remainder of 435.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
If we subtract 5841 from 6276, we get 435.
Grab the next digit (6) from the dividend, add it to 435, then carry on: 4356 / 649

Let's proceed to step 6:
The number 649 fits into 4356 6 times, leaving a remainder of 462.
Record the quotient 6 as the next digit in the result. 
Result so far: 1396.0
The remainder is 462 after subtracting 3894 from 4356.
Take the next digit (3) from the dividend and append it to 462, then repeat: 4623 / 649

Going ahead to step 7:
The number 649 fits into 4623 7 times, leaving a remainder of 80.
Put 7 as the next digit of the answer. 
Result so far: 13967.0
The remainder is 80 after subtracting 4543 from 4623.
Take the next digit (5) from the dividend and append it to 80, then repeat: 805 / 649

Moving on to step 8:
The number 649 fits into 805 1 times, leaving a remainder of 156.
Use 1 as the next digit of our solution. 
Result so far: 139671.0
Subtract 649 from 805 to get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Moving on to step 9:
When dividing 1560 by 649, we get 2 with a remainder of 262.
The number 2 becomes the next digit in our result. 
Result so far: 139671.2
Subtracting 1298 from 1560 leaves us with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Moving on to step 10:
649 can be fit into 2620 4 times, resulting in a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 139671.24
The remainder is 24 after subtracting 2596 from 2620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 11:
240 divided by 649 is 0 with a remainder of 240.
Write down 0 as next digit of the result. 
Result so far: 139671.24
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 12:
649 can be fit into 2400 3 times, resulting in a remainder of 453.
The next digit of our result is 3. 
Result so far: 139671.2403
Deduct 1947 from 2400 and we're left with 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Step 13:
649 can be fit into 4530 6 times, resulting in a remainder of 636.
Record the quotient 6 as the next digit in the result. 
Result so far: 139671.24036
Deduct 3894 from 4530 and we're left with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

On to step 14:
649 can be fit into 6360 9 times, resulting in a remainder of 519.
Record the quotient 9 as the next digit in the result. 
Result so far: 139671.240369
If we take 5841 away from 6360, we end up with 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

Step 15:
649 goes into 5190 7 times with a remainder of 647.
The number 7 becomes the next digit in our result. 
Result so far: 139671.2403697
If we take 4543 away from 5190, we end up with 647.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6470, and continue the process.

Advancing to step 16:
When dividing 6470 by 649, we get 9 with a remainder of 629.
The number 9 becomes the next digit in our result. 
Result so far: 139671.24036979
If we take 5841 away from 6470, we end up with 629.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6290, and continue the process.

The final result is 139671.24036979 with a remainder of 6.29e-07.