7212017 ÷ 142 
We want to figure out the number of times 7212017 can be divided by 142.

Let's proceed to step 1:
When dividing 7 by 142, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 142

Moving on to step 2:
72 divided by 142 is 0 with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Bring next digit (1) of the dividend behind the 72 and repeat the process: 721 / 142

Step 3:
142 goes into 721 5 times with a remainder of 11.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 710 from 721 and we're left with 11.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 142

Moving on to step 4:
When dividing 112 by 142, we get 0 with a remainder of 112.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we take 0 away from 112, we end up with 112.
Grab the next digit (0) from the dividend, add it to 112, then carry on: 1120 / 142

Going ahead to step 5:
1120 divided by 142 is 7 with a remainder of 126.
The next digit of our result is 7. 
Result so far: 507.0
If we take 994 away from 1120, we end up with 126.
Fetch the next digit (1) from the dividend, attach it to 126 and continue: 1261 / 142

On to step 6:
142 goes into 1261 8 times with a remainder of 125.
Use 8 as the next digit of our solution. 
Result so far: 5078.0
The remainder is 125 after subtracting 1136 from 1261.
Include the next digit (7) from the dividend after 125, then repeat: 1257 / 142

Step 7:
1257 divided by 142 is 8 with a remainder of 121.
Write down 8 as next digit of the result. 
Result so far: 50788.0
The remainder is 121 after subtracting 1136 from 1257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Moving on to step 8:
If we divide 1210 by 142, we get 8 and a remainder of 74.
Use 8 as the next digit of our solution. 
Result so far: 50788.8
Subtracting 1136 from 1210 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 9:
142 goes into 740 5 times with a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 50788.85
If we take 710 away from 740, 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.

Advancing to step 10:
The number 142 fits into 300 2 times, leaving a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 50788.852
Subtracting 284 from 300 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
142 goes into 160 1 times with a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 50788.8521
If we subtract 142 from 160, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 12:
When dividing 180 by 142, we get 1 with a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 50788.85211
If we subtract 142 from 180, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final result is 50788.85211 with a remainder of 3.8e-05.