42636481 ÷ 406 
We want to divide 42636481 by 406.

Going ahead to step 1:
The number 406 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 406

Step 2:
The number 406 fits into 42 0 times, leaving a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Append the next digit (6) from the dividend to 42 and continue with: 426 / 406

Let's proceed to step 3:
406 can be fit into 426 1 times, resulting in a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 406 from 426 to get 20.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 406

Advancing to step 4:
406 goes into 203 0 times with a remainder of 203.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 203 leaves us with 203.
Fetch the next digit (6) from the dividend, attach it to 203 and continue: 2036 / 406

On to step 5:
2036 divided by 406 is 5 with a remainder of 6.
The next digit of our result is 5. 
Result so far: 105.0
If we take 2030 away from 2036, we end up with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 406

Going ahead to step 6:
When dividing 64 by 406, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 1050.0
If we take 0 away from 64, we end up with 64.
Fetch the next digit (8) from the dividend, attach it to 64 and continue: 648 / 406

Let's proceed to step 7:
648 divided by 406 is 1 with a remainder of 242.
Record the quotient 1 as the next digit in the result. 
Result so far: 10501.0
Deduct 406 from 648 and we're left with 242.
Bring next digit (1) of the dividend behind the 242 and repeat the process: 2421 / 406

Going ahead to step 8:
When dividing 2421 by 406, we get 5 with a remainder of 391.
The next digit of our result is 5. 
Result so far: 105015.0
Subtract 2030 from 2421 to get 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Moving on to step 9:
The number 406 fits into 3910 9 times, leaving a remainder of 256.
Write down 9 as next digit of the result. 
Result so far: 105015.9
If we take 3654 away from 3910, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 10:
406 can be fit into 2560 6 times, resulting in a remainder of 124.
Use 6 as the next digit of our solution. 
Result so far: 105015.96
If we subtract 2436 from 2560, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 11:
406 goes into 1240 3 times with a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 105015.963
If we take 1218 away from 1240, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 12:
406 goes into 220 0 times with a remainder of 220.
Write down 0 as next digit of the result. 
Result so far: 105015.963
Subtracting 0 from 220 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 13:
406 goes into 2200 5 times with a remainder of 170.
The next digit of our result is 5. 
Result so far: 105015.96305
Subtracting 2030 from 2200 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 14:
1700 divided by 406 is 4 with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 105015.963054
The remainder is 76 after subtracting 1624 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 15:
406 goes into 760 1 times with a remainder of 354.
The number 1 becomes the next digit in our result. 
Result so far: 105015.9630541
Subtracting 406 from 760 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 16:
If we divide 3540 by 406, we get 8 and a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 105015.96305418
Subtracting 3248 from 3540 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

The final outcome is 105015.96305418, with a leftover of 2.92e-07.