We look at the division of 64021138 by 850 
Our goal is to divide 64021138 by 850.

Step 1:
If we divide 6 by 850, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 850

Moving on to step 2:
64 divided by 850 is 0 with a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Grab the next digit (0) from the dividend, add it to 64, then carry on: 640 / 850

On to step 3:
850 can be fit into 640 0 times, resulting in a remainder of 640.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 640, we get 640.
Append the next digit (2) from the dividend to 640 and continue with: 6402 / 850

Step 4:
6402 divided by 850 is 7 with a remainder of 452.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Deduct 5950 from 6402 and we're left with 452.
Bring next digit (1) of the dividend behind the 452 and repeat the process: 4521 / 850

Advancing to step 5:
The number 850 fits into 4521 5 times, leaving a remainder of 271.
Write down 5 as next digit of the result. 
Result so far: 75.0
The remainder is 271 after subtracting 4250 from 4521.
Grab the next digit (1) from the dividend, add it to 271, then carry on: 2711 / 850

Going ahead to step 6:
850 can be fit into 2711 3 times, resulting in a remainder of 161.
Use 3 as the next digit of our solution. 
Result so far: 753.0
Subtracting 2550 from 2711 leaves us with 161.
Fetch the next digit (3) from the dividend, attach it to 161 and continue: 1613 / 850

Advancing to step 7:
850 goes into 1613 1 times with a remainder of 763.
Use 1 as the next digit of our solution. 
Result so far: 7531.0
Subtracting 850 from 1613 leaves us with 763.
Bring next digit (8) of the dividend behind the 763 and repeat the process: 7638 / 850

Let's proceed to step 8:
850 goes into 7638 8 times with a remainder of 838.
Put 8 as the next digit of the answer. 
Result so far: 75318.0
Subtracting 6800 from 7638 leaves us with 838.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8380, and continue the process.

Advancing to step 9:
850 goes into 8380 9 times with a remainder of 730.
The next digit of our result is 9. 
Result so far: 75318.9
Subtract 7650 from 8380 to get 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

On to step 10:
850 goes into 7300 8 times with a remainder of 500.
Put 8 as the next digit of the answer. 
Result so far: 75318.98
If we subtract 6800 from 7300, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Advancing to step 11:
If we divide 5000 by 850, we get 5 and a remainder of 750.
Use 5 as the next digit of our solution. 
Result so far: 75318.985
If we subtract 4250 from 5000, we get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Let's proceed to step 12:
When dividing 7500 by 850, we get 8 with a remainder of 700.
Record the quotient 8 as the next digit in the result. 
Result so far: 75318.9858
If we subtract 6800 from 7500, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Step 13:
850 goes into 7000 8 times with a remainder of 200.
The next digit of our result is 8. 
Result so far: 75318.98588
Deduct 6800 from 7000 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 75318.98588, with a leftover of 0.0002.