42396543 ÷ 401 
Let's see how many times 401 fits into 42396543.

Moving on to step 1:
If we divide 4 by 401, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 401

Going ahead to step 2:
401 goes into 42 0 times with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Include the next digit (3) from the dividend after 42, then repeat: 423 / 401

Going ahead to step 3:
401 goes into 423 1 times with a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 401 from 423 and we're left with 22.
Fetch the next digit (9) from the dividend, attach it to 22 and continue: 229 / 401

On to step 4:
401 goes into 229 0 times with a remainder of 229.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 229, we end up with 229.
Fetch the next digit (6) from the dividend, attach it to 229 and continue: 2296 / 401

On to step 5:
401 goes into 2296 5 times with a remainder of 291.
The next digit of our result is 5. 
Result so far: 105.0
If we subtract 2005 from 2296, we get 291.
Grab the next digit (5) from the dividend, add it to 291, then carry on: 2915 / 401

Going ahead to step 6:
If we divide 2915 by 401, we get 7 and a remainder of 108.
Record the quotient 7 as the next digit in the result. 
Result so far: 1057.0
Subtract 2807 from 2915 to get 108.
Grab the next digit (4) from the dividend, add it to 108, then carry on: 1084 / 401

On to step 7:
If we divide 1084 by 401, we get 2 and a remainder of 282.
Record the quotient 2 as the next digit in the result. 
Result so far: 10572.0
Deduct 802 from 1084 and we're left with 282.
Fetch the next digit (3) from the dividend, attach it to 282 and continue: 2823 / 401

Going ahead to step 8:
The number 401 fits into 2823 7 times, leaving a remainder of 16.
The next digit of our result is 7. 
Result so far: 105727.0
Subtract 2807 from 2823 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
If we divide 160 by 401, we get 0 and a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 105727.0
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 10:
The number 401 fits into 1600 3 times, leaving a remainder of 397.
Record the quotient 3 as the next digit in the result. 
Result so far: 105727.03
Deduct 1203 from 1600 and we're left with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

On to step 11:
3970 divided by 401 is 9 with a remainder of 361.
The next digit of our result is 9. 
Result so far: 105727.039
The remainder is 361 after subtracting 3609 from 3970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Going ahead to step 12:
The number 401 fits into 3610 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 105727.0399
If we subtract 3609 from 3610, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

In conclusion, the division gives 105727.0399 with a balance of 1e-05.