69121590 divided by 142 
We want to figure out the number of times 69121590 can be divided by 142.

Going ahead to step 1:
142 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 142

Let's proceed to step 2:
142 goes into 69 0 times with a remainder of 69.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 69 to get 69.
Grab the next digit (1) from the dividend, add it to 69, then carry on: 691 / 142

Let's proceed to step 3:
If we divide 691 by 142, we get 4 and a remainder of 123.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 568 from 691 and we're left with 123.
Bring next digit (2) of the dividend behind the 123 and repeat the process: 1232 / 142

Let's proceed to step 4:
If we divide 1232 by 142, we get 8 and a remainder of 96.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
If we subtract 1136 from 1232, we get 96.
Fetch the next digit (1) from the dividend, attach it to 96 and continue: 961 / 142

Moving on to step 5:
If we divide 961 by 142, we get 6 and a remainder of 109.
The number 6 becomes the next digit in our result. 
Result so far: 486.0
Deduct 852 from 961 and we're left with 109.
Grab the next digit (5) from the dividend, add it to 109, then carry on: 1095 / 142

On to step 6:
When dividing 1095 by 142, we get 7 with a remainder of 101.
Use 7 as the next digit of our solution. 
Result so far: 4867.0
Subtract 994 from 1095 to get 101.
Include the next digit (9) from the dividend after 101, then repeat: 1019 / 142

Let's proceed to step 7:
142 can be fit into 1019 7 times, resulting in a remainder of 25.
Put 7 as the next digit of the answer. 
Result so far: 48677.0
Subtracting 994 from 1019 leaves us with 25.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 142

Let's proceed to step 8:
When dividing 250 by 142, we get 1 with a remainder of 108.
Put 1 as the next digit of the answer. 
Result so far: 486771.0
Subtracting 142 from 250 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 9:
If we divide 1080 by 142, we get 7 and a remainder of 86.
Use 7 as the next digit of our solution. 
Result so far: 486771.7
If we take 994 away from 1080, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 10:
When dividing 860 by 142, we get 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 486771.76
If we subtract 852 from 860, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
142 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 486771.76
Deduct 0 from 80 and we're left 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:
142 can be fit into 800 5 times, resulting in a remainder of 90.
Record the quotient 5 as the next digit in the result. 
Result so far: 486771.7605
Deduct 710 from 800 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 13:
142 goes into 900 6 times with a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 486771.76056
Subtract 852 from 900 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 14:
142 can be fit into 480 3 times, resulting in a remainder of 54.
Record the quotient 3 as the next digit in the result. 
Result so far: 486771.760563
The remainder is 54 after subtracting 426 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 15:
If we divide 540 by 142, we get 3 and a remainder of 114.
The number 3 becomes the next digit in our result. 
Result so far: 486771.7605633
Subtract 426 from 540 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

The final outcome is 486771.7605633, with a leftover of 1.14e-06.