42217979 ÷ 265 
We want to figure out the number of times 42217979 can be divided by 265.

Advancing to step 1:
When dividing 4 by 265, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 265

Advancing to step 2:
42 divided by 265 is 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Grab the next digit (2) from the dividend, add it to 42, then carry on: 422 / 265

Going ahead to step 3:
422 divided by 265 is 1 with a remainder of 157.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 157 after subtracting 265 from 422.
Bring next digit (1) of the dividend behind the 157 and repeat the process: 1571 / 265

Moving on to step 4:
The number 265 fits into 1571 5 times, leaving a remainder of 246.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we subtract 1325 from 1571, we get 246.
Fetch the next digit (7) from the dividend, attach it to 246 and continue: 2467 / 265

Advancing to step 5:
2467 divided by 265 is 9 with a remainder of 82.
The next digit of our result is 9. 
Result so far: 159.0
The remainder is 82 after subtracting 2385 from 2467.
Take the next digit (9) from the dividend and append it to 82, then repeat: 829 / 265

Step 6:
829 divided by 265 is 3 with a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 1593.0
If we subtract 795 from 829, we get 34.
Bring next digit (7) of the dividend behind the 34 and repeat the process: 347 / 265

Going ahead to step 7:
347 divided by 265 is 1 with a remainder of 82.
Put 1 as the next digit of the answer. 
Result so far: 15931.0
If we subtract 265 from 347, we get 82.
Fetch the next digit (9) from the dividend, attach it to 82 and continue: 829 / 265

Step 8:
The number 265 fits into 829 3 times, leaving a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 159313.0
Subtract 795 from 829 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 9:
If we divide 340 by 265, we get 1 and a remainder of 75.
The number 1 becomes the next digit in our result. 
Result so far: 159313.1
If we take 265 away from 340, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 10:
265 can be fit into 750 2 times, resulting in a remainder of 220.
Put 2 as the next digit of the answer. 
Result so far: 159313.12
Subtract 530 from 750 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 11:
2200 divided by 265 is 8 with a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 159313.128
Subtracting 2120 from 2200 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 12:
265 goes into 800 3 times with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 159313.1283
If we take 795 away from 800, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
265 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 159313.1283
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 14:
When dividing 500 by 265, we get 1 with a remainder of 235.
Use 1 as the next digit of our solution. 
Result so far: 159313.128301
Subtract 265 from 500 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Moving on to step 15:
When dividing 2350 by 265, we get 8 with a remainder of 230.
Put 8 as the next digit of the answer. 
Result so far: 159313.1283018
Deduct 2120 from 2350 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 16:
When dividing 2300 by 265, we get 8 with a remainder of 180.
Write down 8 as next digit of the result. 
Result so far: 159313.12830188
The remainder is 180 after subtracting 2120 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final outcome is 159313.12830188, with a leftover of 1.8e-07.