42516031 divided by 851 
Our goal is to divide 42516031 by 851.

On to step 1:
When dividing 4 by 851, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
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 / 851

Moving on to step 2:
When dividing 42 by 851, we get 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Grab the next digit (5) from the dividend, add it to 42, then carry on: 425 / 851

Going ahead to step 3:
425 divided by 851 is 0 with a remainder of 425.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 425 to get 425.
Append the next digit (1) from the dividend to 425 and continue with: 4251 / 851

Let's proceed to step 4:
851 goes into 4251 4 times with a remainder of 847.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 3404 from 4251, we get 847.
Include the next digit (6) from the dividend after 847, then repeat: 8476 / 851

Let's proceed to step 5:
If we divide 8476 by 851, we get 9 and a remainder of 817.
The next digit of our result is 9. 
Result so far: 49.0
Subtract 7659 from 8476 to get 817.
Append the next digit (0) from the dividend to 817 and continue with: 8170 / 851

Step 6:
851 goes into 8170 9 times with a remainder of 511.
Put 9 as the next digit of the answer. 
Result so far: 499.0
Subtract 7659 from 8170 to get 511.
Grab the next digit (3) from the dividend, add it to 511, then carry on: 5113 / 851

Step 7:
5113 divided by 851 is 6 with a remainder of 7.
The next digit of our result is 6. 
Result so far: 4996.0
The remainder is 7 after subtracting 5106 from 5113.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 851

On to step 8:
If we divide 71 by 851, we get 0 and a remainder of 71.
The next digit of our result is 0. 
Result so far: 49960.0
If we subtract 0 from 71, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 9:
When dividing 710 by 851, we get 0 with a remainder of 710.
The next digit of our result is 0. 
Result so far: 49960.0
If we subtract 0 from 710, we get 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7100, and continue the process.

Advancing to step 10:
When dividing 7100 by 851, we get 8 with a remainder of 292.
Use 8 as the next digit of our solution. 
Result so far: 49960.08
The remainder is 292 after subtracting 6808 from 7100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 11:
If we divide 2920 by 851, we get 3 and a remainder of 367.
Record the quotient 3 as the next digit in the result. 
Result so far: 49960.083
The remainder is 367 after subtracting 2553 from 2920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Going ahead to step 12:
If we divide 3670 by 851, we get 4 and a remainder of 266.
Put 4 as the next digit of the answer. 
Result so far: 49960.0834
The remainder is 266 after subtracting 3404 from 3670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Let's proceed to step 13:
851 goes into 2660 3 times with a remainder of 107.
Use 3 as the next digit of our solution. 
Result so far: 49960.08343
Deduct 2553 from 2660 and we're left with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Let's proceed to step 14:
851 goes into 1070 1 times with a remainder of 219.
The number 1 becomes the next digit in our result. 
Result so far: 49960.083431
Subtract 851 from 1070 to get 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

On to step 15:
When dividing 2190 by 851, we get 2 with a remainder of 488.
The number 2 becomes the next digit in our result. 
Result so far: 49960.0834312
Subtract 1702 from 2190 to get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Advancing to step 16:
If we divide 4880 by 851, we get 5 and a remainder of 625.
Put 5 as the next digit of the answer. 
Result so far: 49960.08343125
If we subtract 4255 from 4880, we get 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

The final outcome is 49960.08343125, with a leftover of 6.25e-07.