81158037 divided by 42 
We want to figure out the number of times 81158037 can be divided by 42.

Advancing to step 1:
8 divided by 42 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 42

On to step 2:
The number 42 fits into 81 1 times, leaving a remainder of 39.
The next digit of our result is 1. 
Result so far: 1.0
If we take 42 away from 81, we end up with 39.
Fetch the next digit (1) from the dividend, attach it to 39 and continue: 391 / 42

Moving on to step 3:
391 divided by 42 is 9 with a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Deduct 378 from 391 and we're left with 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 42

Let's proceed to step 4:
When dividing 135 by 42, we get 3 with a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 193.0
Subtract 126 from 135 to get 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 42

Advancing to step 5:
The number 42 fits into 98 2 times, leaving a remainder of 14.
The next digit of our result is 2. 
Result so far: 1932.0
Deduct 84 from 98 and we're left with 14.
Grab the next digit (0) from the dividend, add it to 14, then carry on: 140 / 42

Going ahead to step 6:
42 goes into 140 3 times with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 19323.0
The remainder is 14 after subtracting 126 from 140.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 42

Step 7:
If we divide 143 by 42, we get 3 and a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 193233.0
Subtract 126 from 143 to get 17.
Grab the next digit (7) from the dividend, add it to 17, then carry on: 177 / 42

Going ahead to step 8:
42 goes into 177 4 times with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 1932334.0
Deduct 168 from 177 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 9:
If we divide 90 by 42, we get 2 and a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 1932334.2
Deduct 84 from 90 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
When dividing 60 by 42, we get 1 with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 1932334.21
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 11:
42 can be fit into 180 4 times, resulting in a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 1932334.214
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 12:
42 goes into 120 2 times with a remainder of 36.
The next digit of our result is 2. 
Result so far: 1932334.2142
Subtracting 84 from 120 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 13:
The number 42 fits into 360 8 times, leaving a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 1932334.21428
Deduct 336 from 360 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 14:
42 goes into 240 5 times with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 1932334.214285
If we take 210 away from 240, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 15:
42 can be fit into 300 7 times, resulting in a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 1932334.2142857
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 16:
The number 42 fits into 60 1 times, leaving a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 1932334.21428571
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 1932334.21428571, with a leftover of 1.8e-08.